SILICON CHIP PROJECTS & CIRCUITS PUBLISHED NOVEMBER 1987 TO JUNE 2009 SUBJECT HEADINGS AND PCB PREFIX NUMBERS AUDIO/HI-FI 01 TV/VIDEO 02 SECURITY (BURGLAR ALARMS, ETC) 03 TEST & MEASUREMENT 04 AUTOMOTIVE 05 RADIO COMMUNICATIONS 06 COMPUTERS 07 GAMES 08 MODEL RAILWAYS/RADIO CONTROL 09 MAINS POWER CONTROL 10 BATTERY POWER (INVERTERS, FENCES) 11 TELEPHONES/FACSIMILE 12 PHOTOGRAPHY 13 BATTERY CHARGERS 14 REMOTE CONTROL 15 LASERS & LIGHTING 16 SAFETY WOODWORKING CIRCUIT NOTEBOOK BACK ISSUES PROJECT BOOKS AUDIO/HI-FI (01) Car Stereo For Your Home November 1987 (SC0111287) (Greg Swain) (see Ask SC Feb 88) 100W Amplifier Module To Build (SC111287) December 1987 (Leo Simpson) (see Ask SC Feb 88 and Kit Clinic December 1988) (Jaycar kit) Subcarrier (ACS) Adaptor For FM Tuners January 1988 (SC0611287) (John Clarke/Leo Simpson) (See also Ask SC Nov 92 for modifications) Studio 200 Stereo Power Amplifier (SC111287) February 1988 (Leo Simpson) (Modifications: January 1990) Endless Loop Tape Player (SC11488) (Greg Swain) March 1988 Old-Time Crystal Radio (John Hill) March 1988 Headphone Amplifier For CD Players April 1988 (SC11688) (John Clarke) Studio 200 Stereo Control Unit (SC011688) Pt 1 June 1988 (Leo Simpson/Bob Flynn/Greg Swain) Pt 2 July 1988 (Errata: August, October 1988, September 1989, November 1990) (Altronics kit) Masthead Amplifier For TV & FM (Branko Justic) July 1988 High Performance FM Antenna (5-Element) October 1988 (Bob Flynn) Classic Matchbox Crystal Set (Steve Payor) October 1988 High Power PA Amplifier Module November 1988 (SC0111188) (Bob Flynn) 120W PA Amplifier Pt 1 December 1988 Microphone, Preamp & Mixer Stages Pt 2 January 1989 (SC0111288) (Bob Flynn) (Errata: April 1989) Minstrel 2-30 Loudspeakers February 1989 (SC0110289) (Leo Simpson) Stereo Compressor For CD Players March 1989 (SC0120389) (Greg Swain) (Errata: May 1989) Studio Series 32-Band 1/3 Octave Equaliser (SC0110389) (Leo Simpson/John Clarke) Pt 1 March 1989 (Errata: October 1989) Pt 2 April 1989 Telephone Bell Monitor/Transmitter April 1989 (SC0120489) (Greg Swain) Syntom - A Synthesised Tom-Tom (Leo Simpson) May 1989 Passive Loop Antenna For AM Radios June 1989 (Greg Swain) (Technikit Electronics, Melbourne) Studio Series 20-Band Stereo Equaliser Pt 1 August 1989 (SC0110389)(SC0110789) Pt 2 September 1989 (Leo Simpson/Bob Flynn) Null Your Amplifier's DC Output To Zero September 1989 (Auto Zero Module) (SC0110889) (John Clarke) 2-Chip Portable AM Stereo Radio Pt 1 September 1989 (SC0610889) (Steve Payor) Pt 2 October 1989 (Errata: May 1990) Pt 3 November 1989 Balanced Input/Output Stages For The Studio December 1989 Series Equalisers (SC0111289) (John Clarke) Modifications To The Studio 200 Amplifier January 1990 16-Channel Mixing Desk Pt 1 February 1990 (SC01102901/2/3) (John Clarke/ Pt 2 March 1990 Leo Simpson) (Errata: October 1990) Pt 3 April 1990 (Modifications: November 1990) Pt 4 May 1990 Midrange Tone Control (Mono) & 5-Band Equaliser March 1990 (Refer to 16-Channel Mixing Desk above) & April 1990 Universal Stereo Preamplifier June 1990 (SC0110690) (John Clarke/Leo Simpson) Modifications To The 16-Channel Mixer November 1990 Synthesised Stereo AM Tuner Pt 1 February 1991 (SC01101911-3) Pt 2 March 1991 (John Clarke/Greg Swain) Pt 3 April 1991 (Errata: September 1991, January 1993) Stereo Audio Expander (SC01105911) May 1991 (Darren Yates) (Errata: July 1991) Howl Suppression For Public Address Systems June 1991 (Darren Yates) CD Error Analyser Pt 1 July 1991 (SC01405911-3) Pt 2 August 1991 (Stephen McBride) Pt 3 November 1991 Loudspeaker Protector For Stereo Amplifiers July 1991 (SC01105911) (Bob Flynn) Masthead Amplifier For TV & FM August 1991 (SC02107911) (John Clarke/Greg Swain) Studio 3-55L 3-Way Loudspeaker System September 1991 (Greg Swain) Low-Noise 4-Channel Guitar Mixer (SC01101921) January 1992 (Darren Yates) (DSE, Jaycar kits) (See also Circuit Notebook Feb 96 for modifications) "Plastic Power" Stereo Power Amplifier February 1992 (SC01102921) (Leo Simpson/Bob Flynn) Studio Twin Fifty Stereo Amplifier Pt 1 March 1992 (SC01103921-2-3, SC01102921) Pt 2 April 1992 (Leo Simpson/Bob Flynn) (Errata: Dec 1992, Feb 1993, Sept 1993) The Eliminator (Power Supply For Personal May 1992 Radios) (SC04104921) (Marque Crozman) Multi-Station Headset Intercom (SC01302921) Pt 1 June 1992 (Marque Crozman) (Altronics kit) Pt 2 July 1992 Dummy Load Box For Large Audio Amplifiers August 1992 (Leo Simpson) Mini Amplifier For Personal Stereos October 1992 (SC01110921) (Darren Yates) (DSE kit) FM Radio Receiver November 1992 (SC06111921) (Darren Yates) (DSE K5014) Peerless PSK60/2 2-Way Hifi Loudspeakers January 1993 (DSE kit) (Tom Manning - Scan Audio) Flea-Power AM Radio Transmitter January 1993 (SC0612921) (Darren Yates) Audio Level/VU Meter With LED Readout February 1993 (Bernie Gilchrist) (DSE kit) Low-Cost Audio Mixer For Camcorders March 1993 (01112921) (Darren Yates) (Errata: April 1993) Audio Power Meter (01105931) (Darren Yates) April 1993 (Altronics, DSE kits) IR Remote Volume Control For Hifi Pt 1 May 1993 Systems (01305931-2) (John Clarke) Pt 2 June 1993 (Ref: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs: April 1996) AM Radio Trainer (06106931) Pt 1 June 1993 (Marque Crozman/Leo Simpson) (DSE kit) Pt 2 July 1993 Crystal Controlled IF Generator (06107931) July 1993 Single Chip Sound/Message Recorder July 1993 (01104931) (Darren Yates) 14MRP (See Circuit Notebook Sept 97 For Modification) (ISD distributor: Adilam Electronics 03 9761 4466) Stereo Preamplifier With IR Remote Pt 1 September 1993 Control (01308931-2) (John Clarke) Pt 2 October 1993 (Errata: April 1994) Pt 3 November 1993 (Ref: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs: April 1996) Solid-State Message Recorder Module October 1993 (Greg Swain) (DSE) FM Wireless Microphone For Musicians October 1993 (Branko Justic) (Oatley Electronics kit) Low-Cost 25W Amplifier Module December 1993 (01112931) (Darren Yates) (Errata: March 1995) (Altronics K5113, DSE, Jaycar kits) 1-Chip Melody Generator December 1993 (Bernie Gilchrist) (DSE kit) 90-Second Voice/Message Recorder (01202941) February 1994 (Darren Yates) (Altronics, Jaycar kits) (ISD distributor: Adilam Electronics 03 9761 4466) CHAMP: Single Chip Audio Amplifier February 1994 (01102941) (Darren Yates) (Errata: June 1994) (Altronics K2115, DSE K5604, Jaycar KC5152) Build A Simple 1-Valve Receiver February 1994 (John Hill) (Vintage Radio) Intelligent IR Remote Controller March 1994 Ben Douchkov (Benetron kit) 50W Audio Amplifier Module (Uses LM3876) March 1994 (01103941) (Darren Yates) (Errata: December 2000, August 2003) (Altronics K5114, DSE, Jaycar KC5150) Voice Activated Audio Switch For FM Wireless March 1994 Microphones (01203941) (Darren Yates) Low-Noise Universal Stereo Preamplifier April 1994 (01106941) (Darren Yates) (see Ask SC Aug 94) (Altronics, DSE, Jaycar KC5159) (Ref Circuit Notebook June 1996 For Selectable Gain) Multi-Channel Infrared Remote Control May 1994 (15105941-2) (Brian Roberts) (Errata: March 1995) 200W/350W Mosfet Amplifier Module June 1994 (Anthony Holton) (C&ES kit) The Stoney Broke Loudspeaker System June 1994 (Leo Simpson) (Altronics kit) Convert Your Phono Inputs To Line Inputs June 1994 (Inverse RIAA Filter) (01105941) (Leo Simpson) SmallTalk: Tiny Voice Digitiser For The PC July 1994 (Darren Yates) PreCHAMP 2-Transistor Preamplifier July 1994 (01107941) (Darren Yates) (Altronics K2112, DSE, Jaycar KC5166) Dual Diversity Tuner For FM Microphones Pt 1 August 1994 (06307941/2) (John Clarke) Errata & Pt 2 September 1994 Building A Classic Crystal Set September 1994 (John Hill) (Vintage Radio) Talking Headlight Reminder October 1994 (01109941) (Darren Yates) (DSE, Jaycar kits) 20EPC 3-Spot Low Distortion Sinewave Oscillator December 1994 (01110941) (Darren Yates) Dolby Pro-Logic Surround Sound Decoder Pt 1 December 1994 (02311941) (John Clarke) (Jaycar kit) Pt 2 January 1995 Portable Stereo Microphone Preamplifier January 1995 (01111941) (Darren Yates) 50W Per Channel Stereo Amplifier Module February 1995 (01102951) (Leo Simpson/Bob Flynn) (Uses LM3886) (Errata: March 1995) (Altronics K5130, DSE, Jaycar kits) (Ref Circuit Notebook June 1996 For Bridge Operation) Digital Effects Unit For Musicians (Guitar) February 1995 (01301951-2) (John Clarke) (Errata: March 1995) (Jaycar kit) (Microprocessor from SC) Wide Range Electrostatic Loudspeakers Pt 1 February 1995 (Rob McKinlay) Pt 2 March 1995 (ER Audio kit) Pt 3 April 1995 Subcarrier Decoder (ACS) For FM Receivers March 1995 (06103951) (John Clarke) (Jaycar kit) Building A Tube Sub-Woofer March 1995 (Julian Edgar) (Car Sound) 50W Per Channel Stereo Amplifier Pt 1 March 1995 (01102951/01103951-4) (Uses LM3886) Pt 2 April 1995 (Leo Simpson/Bob Flynn) (Altronics, Jaycar kits) Balanced Microphone Preamplifier & Line Mixer April 1995 (PED5531) (Leo Simpson) (Altronics 5531) (See Circuit Notebook May 1995 For "Phantom Power" Modification) FM Radio Trainer Pt 1 April 1995 (06303951) (John Clarke) (DSE kit) Pt 2 May 1995 Mains Music Transmitter & Receiver May 1995 (Jeff Monegal) (Errata: July 1995) Kit no longer available Guitar Headphone Amplifier (01305951) May 1995 (John Clarke) (Altronics, DSE, Jaycar kits) 1W Audio Amplifier Trainer June 1995 (01306951) (John Clarke) (DSE kit) Vifa JV60 2-Way Bass Reflex Loudspeaker System August 1995 (Leo Simpson) (Jaycar kit) A Gain Controlled Microphone Preamp August 1995 (01207951) (John Clarke) (Altronics, Jaycar kits) Audio Lab: A PC-Controlled Audio Test Pt 1 August 1995 Instrument (Roger Kent) (RSK kit) Pt 2 September 1995 Mighty-Mite Powered Loudspeaker August 1995 (01305951) (John Clarke) JV100 3-Way Bass Reflex Loudspeakers October 1995 (Leo Simpson) (Jaycar kit) Dolby Pro Logic Surround Sound Decoder Mk.2 Pt 1 November 1995 (01409951-2-3-4-5)(John Clarke)(Jaycar kit) Pt 2 December 1995 (Errata: January/February 1996) (Ref Ask SC June 1996 For Remote Control) Five Band Equaliser Using Two Low Cost ICs December 1995 (01309951) (John Clarke) (Errata: January 1996) (Altronics K5305, Jaycar kits) Subwoofer Controller With Signal Limiting & December 1995 Automatic Power-On (Altronics K5562) (Errata: February 1996) Surround Sound Mixer & Decoder For Pt 1 January 1996 Camcorders (Includes VU Metering) Pt 2 February 1996 (02302961-2-3) (John Clarke) High Quality ALC (Automatic Level Control) For March 1996 PA Systems (01303961) (John Clarke) (Ref Ask SC June 1996 For Loudspeaker Protection) (No kit - main IC from Farnell) 20ms Delay For Surround Sound Decoders March 1996 (01401961) (John Clarke) (Altronics K5595, Jaycar kit) Plastic Power Amplifier Module (For HiFi/Musical April 1996 Instruments) (01104961) (Leo Simpson/Bob Flynn) (Errata: November 1996) (DSE, Jaycar KC5201) See March 2000 for refined version Replacement Module For The SL486 & MV601 Remote April 1996 Control Receiver ICs (09103961) (Rick Walters) (Ref: IR RC For Model Railroads, SC April-May 92; Remote Volume Control For HiFi, SC May-June 93; Stereo Preamplifier With IR RC, SC Sept-Nov 93) Fibre Optic Two-Way Intercom May 1996 (Leo Simpson) (DIY/Ozitronics kit) High Performance Stereo Simulator June 1996 (01406961) (John Clarke) (Altronics K5950) (Errata: September 1996) Three-Band Parametric Equaliser July 1996 (01107961) (Bob Flynn) (Altronics K5330, Jaycar) Rugged Mosfet Audio Amplifier Module August 1996 (Leo Simpson) (Altronics kit) Portable Masthead Amplifier For TV & FM August 1996 (Branko Justic) (Oatley Electronics kit) High Quality Public Address Loudspeakers September 1996 (01310961-2) (John Clarke) Infrared Stereo Headphone Link Part 1 Transmitter September 1996 (01109961) (Rick Walters) Infrared Stereo Headphone Link Part 2 Receiver October 1996 (01109962-3) (Rick Walters) 600W DC-DC Converter For Car Hifi Systems Pt 1 October 1996 (05308961) (John Clarke) (Jaycar kit) Pt 2 November 1996 Multimedia Sound System (01110961) (Rick Walters) Pt 1: Bridged Amplifiers On A PC Card: TDA1519A October 1996 Pt 2: Loudspeakers November 1996 (Errata: February 1997, July 1997) (Altronics, Jaycar kits) 8-Channel Stereo Mixer Pt 1 November 1996 (01210961-2) (John Clarke) (Jaycar kit) Pt 2 December 1996 Active Filter For CW Reception December 1996 (06112961) (Leon Williams) Plastic Power (175W) PA Amplifier March 1997 (01103971) (Ross Tester) Universal Loudspeaker Protector For Stereo April 1997 Amplifiers (01104971) (Leo Simpson/Bob Flynn) (DSE, Jaycar kits) (Errata: June 1997) InfraRed Remote Volume Control (1 to 8 Channels) July 1997 (Leo Simpson) (Oatley Electronics kit) Simple Waveform Generator July 1997 (01307971) (John Clarke) (Jaycar kit) The Bass Barrel Subwoofer August 1997 (Julian Edgar) (Altronics kit) 500W Audio Power Amplifier Pt 1 August 1997 (01208971) (Leo Simpson & Bob Flynn) Pt 2 September 1997 (Altronics, DSE, Jaycar kits) Pt 3 October 1997 (Feedback: March 1998) Loudness Control For Car Hifi Systems December 1997 (01111971) (Rick Walters) (Jaycar kit) Build Your Own Lightshow Pt 1 January 1998 (01112971-2) (Leo Simpson/Rick Walters) Pt 2 February 1998 (Altronics, Jaycar kits) A Simple Regenerative Receiver January 1998 (John Hill - Vintage Radio) Sustain Unit For Electric Guitars (01302981) March 1998 (John Clarke) (Altronics, Jaycar kits) (Errata: July 1999) 5-Element FM Antenna (Leo Simpson/Bob Flynn) March 1998 The Roadies' Friend Cable Tester June 1998 (Paul Hoad) (Hoad Electronics kit) 15W/Channel Class-A Stereo Amplifier Pt 1 July 1998 (SC01207981) (Leo Simpson) (Altronics K5109)Pt 2 August 1998 The Opus One Loudspeaker System August 1998 (Leo Simpson) (Errata Oct 98) (Altronics kit) A Waa-Waa Pedal For Your Guitar (01307981) September 1998 (John Clarke) (Altronics, DSE, Jaycar kits) Versatile Electronic Guitar Limiter October 1998 (01308981) (John Clarke) (Jaycar kit) Lab Quality AC Millivoltmeter Pt 1 October 1998 (01510981-2) (John Clarke) Pt 2 November 1998 FM Transmitter For Musicians November 1998 (Branko Justic) (Oatley Electronics kit) Low Distortion Audio Signal Generator Pt 1 February 1999 (Audio Oscillator) (01402991-2) Pt 2 March 1999 (John Clarke) (Errata: May 99, August 2000) (Altronics K2548, Jaycar) 1-Chip Guitar/Microphone Audio Compressor March 1999 (01303991) (John Clarke) (Altronics K5525) Bass Cube Subwoofer (Julian Edgar) April 1999 (Errata: May 1999) Foldback Loudspeaker System For Musicians November 1999 (John Clarke) Spring Reverberation Module January 2000 (01402000) (John Clarke) (Jaycar kit) Ultra-LD Stereo Amplifier (100W Class-AB) Pt 1 March 2000 (In A Computer Case)(01103001)(Leo Simpson) Pt 2 May 2000 (Refer Plastic Power April 1996) (Altronics K5150, Jaycar) (Errata: Aug 00) Aura Interactor Amplifier - A Solution Waiting March 2000 For A Problem (Aura Competition) (Leo Simpson) PC-Controlled VHF FM Receiver (Mark Roberts) June 2000 (Softmark kit) (Errata: Sept 2000, March 2001) CD Compressor For Cars Or The Home June 2000 (01106001) (John Clarke) (Altronics K5580, Jaycar KC5291) Build A Theremin August 2000 (01207001) (John Clarke) (Altronics, DSE K3015, Jaycar KC5295) Loudspeaker Protector & Fan Controller For The August 2000 Ultra-LD Amplifier (01108001) (Peter Smith/ Leo Simpson) (Errata: September 2000) (Altronics, Jaycar kits) Guitar Jammer For Practice & Jam Sessions October 2000 (01110001) (Leo Simpson/Peter Smith) (Altronics K5536, Jaycar) Installing A Free-Air Subwoofer In Your Car October 2000 (Julian Edgar) 2-Channel Guitar Preamplifier (John Clarke) Main Unit (01111001) (Errata: January 2001) Pt 1 November 2000 (Altronics K5340, Jaycar kits) Digital Reverberation Unit (01112001) Pt 2 December 2000 (No kit - delay IC from DSE kit dept) (Missing pages from December 2000 are published in January 2001) Combining Both Units In A Metal Rack Case Pt 3 January 2001 (Errata: September 2002) LP Doctor (01101011) Pt 1 January 2001 (John Clarke/Leo Simpson) (DSE K5425) Pt 2 February 2001 (Errata: March 2001, April 2001, June 2001, January 2002, June 2002) Bass Blazer (Sub Woofer Level/Frequency Display) February 2001 (01102011-2-3) (Rick Walters) (Errata: April 2001) (Altronics K5410, Jaycar) 2-Metre Elevated Groundplane Antenna February 2001 (Philip Watson) MIDI-Mate: A MIDI Interface For PCs (01201011) February 2001 (Jim Rowe) (Jaycar kit) (Errata: February 2003) More-MIDI: A Simple MIDI Expansion Box March 2001 (01103011) (Jim Rowe) A (Guitar) Tremolo Unit For Musicians April 2001 (01104011) (John Clarke) (DSE, Jaycar kits) Powerful 12V Mini Stereo Amplifier May 2001 (01105011) (John Clarke) (Altronics kit) Direct Injection (DI) Box For Musicians August 2001 (011080110) (John Clarke) (Altronics, DSE, Jaycar kits) (Errata: September 2001) 200 Watt Mosfet Amplifier Module August 2001 (Leo Simpson) (Altronics kit) Build Your Own MP3 Jukebox Pt 1 September 2001 (07109011) (Peter Smith) (Altronics K2750) Pt 2 October 2001 (See FAQs January, April 2002) (Notes & Errata: December 2002) Personal Noise Source For Tinnitus Sufferers September 2001 (01109011) (John Clarke) (Altronics, DSE, Jaycar KC5319) The Sooper Snooper (Ross Tester) September 2001 (Oatley Electronics kit) (Errata: June 2002) Short Message Recorder & Player November 2001 (01111011) (Leon Williams) Low-Cost Audio/Video Distribution Amplifier November 2001 (02111011) (Jim Rowe) (Jaycar KC5320) (Errata: December 2001, April 2002, June 2002) Ultra-LD 2 x 100W Stereo Amplifier Pt 1 November 2001 (01112011-5) (Altronics K5155) Pt 2 December 2001 (Greg Swain/John Clarke/Leo Simpson) Pt 3 January 2002 (Errata: April 2007) Remote Volume Control: see July 2002 2.4GHz High Power A-V Link February 2002 (Ross Tester) (Oatley Electronics kit) VAF's 2-Way Tower Speakers February 2002 (Leo Simpson) (www.vaf.com.au) Mighty Midget 70W Class-H Audio Amplifier Module March 2002 (01203021) (Rick Walters) (Errata: May 2002, June 2002) (Altronics K5140, DSE K5401, Jaycar KC5329) RIAA Preamplifier For Magnetic Cartridges March 2002 (01303021) (Leo Simpson/Ross Tester) (Errata: March 2003) 6-Channel IR Remote Volume Control Pt 1 March 2002 (01103021-3) (John Clarke) (Altronics kit) Pt 2 April 2002 (Errata: June 2002) Stereo Headphone Amplifier May 2002 (01105021) (Ross Tester) (Altronics K5506, DSE, Jaycar KC5335) Remote Volume Control For Stereo Amplifiers June 2002 (15106021) (John Clarke) (Altronics K5026) Remote Volume Control For The Ultra-LD 2 x 100W July 2002 Stereo Amplifier (01107021, 15106022-3) Wi-Fi: 21st Century Cat's Whiskers (Stan Swan) November 2002 SC480 50W RMS Amplifier Module Pt 1 January 2003 (01201031-2-3) (Leo Simpson/Peter Smith) Pt 2 February 2003 (Altronics K5120/K5122, DSE K3431/K3432, Jaycar KC5345/KC5346/KC5347) (Errata: Dec 2005) 3-Way Active Crossover For Loudspeaker Systems January 2003 (01101031) (Mick Gergos) (Jaycar KC5343) (Errata: May 2004) PortaPAL Portable Public Address Amplifier Pt 1 February 2003 (01103031-3) (Leo Simpson/John Clarke) Pt 2 March 2003 (Errata: March 2003, May 2003, December 2004) (Altronics K5360) 12V SLA Battery Float Charger To Suit PortaPAL March 2003 (01103034) (Errata: April 2003) (Altronics K1695) Little Dynamite Subwoofer March 2003 (Julian Edgar) EPC2 WidgyBox: Distortion Effects For Your Guitar May 2003 (01105031) (Peter Smith) (Altronics K5541, Jaycar KC5353) Big Blaster Subwoofer (Julian Edgar) May 2003 Fitting A Wireless Microphone To The PortaPAL August 2003 (Ross Tester) The JV80 Loudspeaker System October 2003 (Leo Simpson) (Jaycar kit) 12AX7 Valve Audio Preamplifier November 2003 (01111031) (Jim Rowe) (Jaycar KC5370 & KC5371) Lapel Microphone Adaptor For PA Systems January 2004 (01101041-2) (John Clarke)(See Circuit Notebook February 2004 for Phantom Supply) 2.4GHz Audio/Video Link January 2004 (Ross Tester) (Oatley Electronics kit) Studio 350 Power Amplifier Module Pt 1 January 2004 (01102041) (Leo Simpson/Peter Smith) Pt 2 February 2004 (Errata: February 2004, April 2004, April 2006) (Altronics K5185, Jaycar KC5372) Using The Valve Preamp In A Hifi System February 2004 (Refer project November 2003) Speaker Sound Level Meter For Home Theatre April 2004 (01104041) (John Clarke) (Altronics K2552, DSE K5624) Regulated 125W HV Power Supply For Valve July 2004 Amplifiers (Modified PC Power Supply) (Leonid Lerner) (DSE K3438) VAF's New DC-X Generation IV Loudspeaker System August 2004 (Philip Vafiadis & Simon Wilde) www.vaf.com.au Balanced Microphone Preamplifier August 2004 (01108041) (John Clarke) (DSE K7219) (Errata: January 2005) Schoolies Amp (20W Amplifier Module) December 2004 (01112041) (Peter Smith) (Altronics K5116, DSE K3405, Jaycar KC5403) VAF DC-7 Generation 4 Kit Speakers January 2005 (Philip Vafiadis & Simon Wilde) www.vaf.com.au TwinTen Stereo Amplifier February 2005 (01102051) (Jim Rowe & Peter Smith) Shielded Loop Antenna For DX AM Reception March 2005 (David Whitby) (Gless Audio kit glesstron@msn.com) MIDI Theremin Pt 1 April 2005 (01204051-2) (John Clarke) (Jaycar KC5410) Pt 2 May 2005 Bass Extender April 2005 (01104051) (Rick Walters) (Errata: July 2005) (Altronics K5561, DSE K5592, Jaycar KC5411) 45-Second Voice Recorder Module May 2005 (01105051) (Jim Rowe) (Jaycar KC5412) (See enhanced version December 2007) Wireless Microphone/Audio Link May 2005 (Ross Tester) (Oatley K222) Mudlark A205 Valve Stereo Amplifier Pt 1 August 2005 (David Whitby) (Gless Audio kit) Pt 2 September 2005 Salvage It! Scrounging & Using Shortwave Radios September 2005 Studio Series Stereo Preamplifier October 2005 (01109051) (Peter Smith) (Altronics K5502) (Errata: February 2006) Studio Series Stereo Preamplifier Power Supply October 2005 (01109052) (Peter Smith) (Altronics K5501, Jaycar KC5418) Studio Series Stereo Headphone Amplifier November 2005 (01111051) (Peter Smith) (Altronics K5503, Jaycar KC5417) Delta XL-02 Tower Loudspeaker System November 2005 (Leo Simpson) (www.kitaudio.com) MIDI Drum Kit (01211051-2) (John Clarke) Introduction Pt 1 November 2005 Putting It Together Pt 2 December 2005 Building The Sensors And Stand Pt 3 January 2006 Installing And Running The Software Pt 4 February 2006 The Ultimate Jukebox (Ross Tester/Tony Murphy) Introduction Pt 1 December 2005 Building The Cabinet Pt 2 January 2006 Building & Installing The Electronics Pt 3 February 2006 Studio Series Remote Control Module April 2006 (01104061) (Peter Smith) (Errata: April 2007) (Altronics K5504) Passive DI Box For Musicians May 2006 (No PCB) (John Clarke) Boost Your ZigBee Range For A Few Bucks May 2006 (Stan Swan) Two-Way SPDIF/Toslink Digital Audio Converter June 2006 (01106061) (Jim Rowe) (Jaycar KC5425) Starship Enterprise Door Sounder June 2006 (01206061) (Jim Rowe) (Jaycar KC5423) Mini Theremin (01207061) (John Clarke) Pt 1 July 2006 (Jaycar KC5426) (Errata: December 2006) Pt 2 August 2006 Studio Series Stereo Preamplifier: July 2006 Installing The Modules In A Case (Peter Smith) (Altronics K5500/K5500S) Tingle Terminator: July 2006 Stop Zaps From Double-Insulated Equipment (John Clarke) Magnetic Cartridge Preamplifier August 2006 (01108061) (John Clarke) (Errata: December 2007) (Altronics K5513, Jaycar KC5433) (See Modification in Circuit Notebook, March 2007) Ultrasonic Eavesdropper August 2006 (01208061) (Jim Rowe) (Errata: October 2006) Turn An Old XBOX Into A $200 Multimedia Player September 2006 (Julian Edgar) A Reformer For Electrolytic Capacitors October 2006 (Rodney Champness) M6 Bass Reflex Kit Loudspeakers November 2006 (Aaron Waplington) (theloudspeakerkit.com) Remote Volume Control & Preamplifier Module Pt 1 February 2007 (01102071-2) (Peter Smith) Pt 2 March 2007 How To Build A Super Crystal Set April 2007 (Rodney Champness) Stereo VU/Peak Meter With LCD Bargraphs May 2007 (01205071-2) (John Clarke) (Jaycar KC5447) (Errata: June 2007) 20W Class-A Amplifier Module (Peter Smith/Leo Simpson/Greg Swain) Introduction (01105071-3) Pt 1 May 2007 Construction & Power Supply Pt 2 June 2007 Speaker Protection & Muting (01207071) Pt 3 July 2007 Preamp & Remote Volume Control (01208071) Pt 4 August 2007 (Errata: September 2007) (Altronics K5124, K5125, K5126, K5127, K5128) Versatile 4-Channel (Guitar) Mixer June 2007 (01106071) (Jim Rowe) (Errata: November 2007) (Altronics K5353, Jaycar KC5448) PICAXE Plays Music! VMUSIC Driver July 2007 (Clive Seager) (www.rev-ed.co.uk) Speaker Protection & Muting Module July 2007 (Designed For The Class-A Amplifier) (01207071) (Peter Smith/Greg Swain) (Jaycar KC5450) Subwoofer Controller (01108071) (Jim Rowe) August 2007 (Jaycar KC5452) (Errata: Dec 2007, Dec 2008) Active AM Loop Antenna & Amplifier October 2007 (Branko Justic/Ross Tester) (Oatley K256) Playback Adapter For CD-ROM Drives Pt 1 November 2007 (07112071) (Mauro Grassi) Pt 2 December 2007 (Errata: December 2007) (Jaycar KC5459) (See also Circuit Notebook, July 2008) Signature Series Kit Loudspeaker System December 2007 (Russell Storey/Leo Simpson) (Kits from Wagner Electronics www.wagner.net.au) Infrared Audio Headphone Link For TV December 2007 (01112071-2) (Jim Rowe) Enhanced 45-Second Voice Recorder Module December 2007 (EC8271) (Jim Rowe) (Jaycar exclusive KC5454) (Refer project May 2005) (Errata: February 2008) (See also Circuit Notebook February 2008 for use in model railways) Build The Aussie-3 Valve AM Radio January 2008 (Keith Walters) 2-Way Stereo Headphone Adaptor April 2008 (01104081) (Mauro Grassi) (See also Circuit Notebook June 2008) Balanced/Unbalanced Converter For Audio Work June 2008 (01106081) (John Clarke) (Altronics K5522) DSP Musicolour Lightshow Pt 1 June 2008 (10107081-2) (Mauro Grassi) Errata & Pt 2 July 2008 (Altronics K5803) Pt 3 August 2008 Remote Control (10107083) Errata & Pt 4 September 2008 Microphone Preamp For PCs & MP3 Players July 2008 (01107081) (John Clarke) Bridge Adaptor For Stereo Power Amplifiers July 2008 (01106081-2) (Leo Simpson) (Altronics K5566, Jaycar KC5469) Ultra-LD Mk2 200W Class AB Power Amplifier (01108081) (Leo Simpson/John Clarke) Pt 1 August 2008 Assembly & Power Supply (01109081) Errata & Pt 2 September 2008 (Altronics K5151, Jaycar KC5470, KC5471) AM (MW) Broadcast Bank Portable Loop Antenna January 2009 (Stan Swan) New Improved Theremin Mk.2 March 2009 (01203091) (John Clarke) (Jaycar KC5475) (Errata: April 2009) Microcontrollers Can Be A Snap! (Stan Swan) March 2009 Using The PICAXE-08M In A Snap Connector Kitset TV/VIDEO (02) High Performance Bow-Tie UHF Antenna January 1988 (SC210188) (Leo Simpson/Bob Flynn) Masthead Amplifier For TV & FM July 1988 (SC0210788) (Branko Justic) Simple Stub Filter To Eliminate TV Interference May 1989 (Amateur Radio - Garry Cratt) Gladesville GaAsFet Amplifier For Amateur TV October 1989 ("Big Julie" Kentwell) Remote Control Extender For VCRs (SC15108901) September 1990 (John Clarke/Greg Swain) (Errata: March 1991) A Corner Reflector Antenna For UHF TV June 1991 (SC02106911) (Bob Flynn/Leo Simpson) Masthead Amplifier For TV & FM August 1991 (SC02107911) (John Clarke/Greg Swain) Colour TV Pattern Generator (SC02210911) Pt 1 November 1991 (John Clarke) (Altronics, DSE, Jaycar kits) Pt 2 December 1991 (See Replacement Circuit For TEA2000: March 1997) TV Transmitter For Video Recorders December 1991 (SC02212911) (John Clarke) TV Transmitter For VHF VCRs March 1992 (SC02212911 and SC02204921) (John Clarke) (Errata: May 1992) Video Switcher For Camcorders & VCRs June 1992 (SC02206921) (John Clarke) (Errata: July, September 1992) Low-Cost Audio Mixer For Camcorders March 1993 (01112921) (Darren Yates) (Errata: April 1993) Low-Cost Video Fader (02107931) (Darren Yates) August 1993 (Errata: September 1993) (DSE kit) Intelligent IR Remote Controller March 1994 (Ben Douchkov) (Benetron kit) Remote Control Extender For VCRs April 1994 (15303941) (John Clarke) (Errata: June 1994) (Altronics, Jaycar kits) Multi-Channel Infrared Remote Control May 1994 (15105942) (Brian Roberts) (Errata: March 1995) 4-Bay Bow-Tie UHF Antenna July 1994 (Leo Simpson/Bob Flynn) (Errata: Sept 1994) Dolby Pro-Logic Surround Sound Decoder Pt 1 December 1994 (02311941) (John Clarke) (Jaycar kit) Pt 2 January 1995 Satellite TV Receiver (Garry Cratt) Pt 1 May 1995 (02305951) (John Clarke) Pt 2 June 1995 (Av-Comm kit) Pt 3 July 1995 Low-Cost Video Security System June 1995 (Leo Simpson) (Oatley Electronics kit) Dolby Pro Logic Surround Sound Decoder Mk.2 Pt 1 November 1995 (01409951-2-3-4-5)(John Clarke)(Jaycar kit) Pt 2 December 1995 (Errata: January/February 1996) (Ref Ask SC June 1996 For Remote Control) Surround Sound Mixer & Decoder Pt 1 January 1996 (02302961-2-3) (John Clarke) Pt 2 February 1996 High Performance Stereo Simulator June 1996 (01406961) (John Clarke) (Altronics kit) (Errata: September 1996) Remote Control Extender For VCRs (15107961) July 1996 (Rick Walters) (Jaycar KC5209) (Errata: Sept 2002) Portable Masthead Amplifier For TV & FM August 1996 (Branko Justic) (Oatley Electronics kit) Send Video Signals Over Twisted Pair Cable October 1996 (Video Transmitter & Video Receiver) (02306961-4) (John Clarke) (Errata: December 1996) (Altronics, Jaycar kits) RGB-To-PAL Encoder Replacement For March 1997 The TV Pattern Generator (02302971) (John Clarke) Build A TV Picture-In-Picture (PIP) Unit April 1997 (02302971) (John Clarke) (Oatley Electronics) Teletext Decoder For Your PC (Chris Schach/ May 1997 Braden Phillips) (Current Dynamics kit) NTSC-To-PAL Converter (02303971) (John Clarke) May 1997 (Kit no longer available - contact Av-Comm for fully built unit) Colour TV Pattern Generator Pt 1 June 1997 (John Clarke) (02305971) Pt 2 July 1997 Errata: October 1997 (Altronics K2715, DSE K7380, Jaycar KC5224) Video Security System For Your Home September 1997 (Branko Justic) (Oatley Electronics kit) Pan Your CCD Video Camera By Remote Control January 1998 (Branko Justic) (Oatley Electronics kit) Audio-Video Transmitter (02405991) July 1999 (John Clarke) (Altronics K5865, Jaycar KC5272) (Errata: September 1999, February 2001) Home Satellite TV System July 2000 (Ross Tester/Garry Cratt) (Av-Comm kit - no longer available) I Spy With My Little Eye (Cavity Camera) October 2000 (Ross Tester) (Oatley Electronics) 2-Metre Elevated Groundplane Antenna February 2001 (Philip Watson) Dr Video (Easy-To-Build Video Stabiliser) April 2001 (02104011) (Jim Rowe) (Jaycar kit) L'il Snooper: Low-Cost Camera Switcher June 2001 (02106011) (Jim Rowe) (Altronics K5842, Jaycar) VideoSCope: (A Video Microscope) October 2001 (Peter Rosenthal & Ross Tester) Low-Cost Audio/Video Distribution Amplifier November 2001 (02111011) (Jim Rowe) (Jaycar KC5320) (Errata: December 2001, April 2002, June 2002) 2.4GHz High Power A-V Link February 2002 (Ross Tester) (Oatley Electronics kit) Video-Audio Booster For Home Theatre April 2003 (02104031) (Jim Rowe) (Jaycar KC5350 or KC5351) 2.4GHz Audio/Video Link January 2004 (Ross Tester) (Oatley Electronics kit) Component Video To RGB Converter May 2004 (02105041) (Jim Rowe) (Jaycar KC5388) (See Circuit Notebook August 2004 for RGB Flag Output; Circuit Notebook August 2005 for Vertical Sync) Dr Video Mk.2 Video Stabiliser June 2004 (02106041) (Jim Rowe) (Jaycar KC5390) (See Circuit Notebook July 2004 for NTSC mod.) (See Circuit Notebook July 2005 for improved stability) Video Enhancer & Y/C Separator August 2004 (02108041) (Jim Rowe) (Jaycar KC5394) RGB To Component Video Converter October 2004 (02110041) (Jim Rowe) (Jaycar KC5398) (Errata: February 2005) (Ref Circuit Notebook July 2005) Install Your Own In-Car Video April 2005 (Gary Rollans) (Components from Jaycar) Video Reading Aid For Vision Impaired People October 2005 (02110051) (Jim Rowe) 4-Channel A/V Selector April 2006 (02104061) (Jim Rowe) Pocket A/V Test Pattern Generator June 2006 (Mick Gergos) (Altronics K2725) 2.4GHz Wireless A/V Link June 2006 (Ross Tester) (Oatley K229) S-Video To Composite Video Converter September 2006 (02109061) (Jim Rowe) Infrared Remote Control Extender October 2006 (02110061) (John Clarke) (Jaycar KC5432) Infrared Audio Headphone Link For TV December 2007 (01112071-2) (Jim Rowe) SECURITY (BURGLAR ALARMS etc) (03) Passive Infrared Movement Detector December 1987 (Branko Justic) (Errata: June 1988) Protector Car Burglar Alarm (SC310188) February 1988 (John Clarke) (Errata: August 1988) Door Minder (SC0320188) (Leo Simpson/John Clarke) February 1988 (see Circuit Notebook April 1989) UHF Remote Alarm Switch For Car Burglar Alarms March 1988 (SC031288) (John Clarke) (Errata: June 88, July 88, Sept 88, Oct 88) (See also Kit Clinic: January 1989) Ultrasonic Car Burglar Alarm (Branko Justic) May 1988 Automatic Light Controller June 1988 (SC0310688) (Branko Justic) Fuel Cut-Off Solenoid To Thief-Proof Your Car July 1988 (Greg Swain) UHF Remote Transmitter/Remote Alert Doorbell August 1988 (SC0312882 & SC03107881)(John Clarke/Greg Swain) (Errata: September, October 1988) LED-Light House Number October 1988 (SC0310988) (John Clarke/Leo Simpson) Compact Ultrasonic Car Burglar Alarm July 1989 (Greg Swain) (Errata: October 1989) 20EPC Alarm-Triggered Telephone Dialler September 1989 (Greg Swain) (Errata: March 1990) (DSE kit) Radfax Decoder (SC0311189) (John Clarke) November 1989 (Errata: June 1990) (Jaycar kit) (Software: Michael Delahunty 07 3358 2785) UHF Remote Control Car Alarm Switch December 1989 (Greg Swain) (Errata: January 1994) (DSE kit) Multi-Sector Home Burglar Alarm June 1990 (Greg Swain) (DSE kit) Burglar Alarm Keypad & Combination Lock July 1990 (Greg Swain) (DSE kit) Low Cost Siren For Burglar Alarms (Leo Simpson) October 1990 Versatile 4-Digit Combination Lock December 1990 (Gary Ioppolo) Ultrasonic Switch For Mains Appliances September 1991 (Jeff Monegal) Flashing Alarm Light For Cars November 1991 (Syd McKitrick) (DSE kit) 20EPC Infrared Light Beam Relay December 1991 (SC03112911) (Darren Yates) (Errata: March 1992, September 1992) (Extender: July 1993) (Jaycar kit) Low-Cost Electronic Doorbell May 1992 (SC03106921) (Darren Yates) Multi-Sector Burglar Alarm Pt 1 September 1992 (Mike Zenere) Pt 2 October 1992 Infrared Night Viewer November 1992 (Branko Justic) (Oatley Electronics kit) Easy-To-Build UHF Remote Switch December 1992 (Oatley Electronics kit) (Greg Swain) 20EPC Alarm-Triggered Security Camera March 1993 (03103931-2) (Tony Nixon) Woofer Stopper (Dog Silencer) May 1993 (03105931) (Darren Yates) (Errata: June 1993) Remote Control For Woofer Stopper (Dog Silencer) June 1993 (03105932) (Darren Yates) (Oatley Electronics kit) Light Beam Relay Extender July 1993 (03106931) (Darren Yates) Image Intensified Night Viewer September 1994 (Leo Simpson) (Oatley Electronics kit) UHF Radio Alarm Pager November 1994 (Branko Justic) (Oatley Electronics kit) An Easy-To-Build Car Burglar Alarm December 1994 (Bernie Gilchrist) (DSE kit) Dual Channel UHF Remote Control January 1995 (Bernie Gilchrist) (DSE kit) IR Illuminator For Cameras & Night Viewers March 1995 (Branko Justic) (Oatley Electronics kit) Low-Cost Video Security System June 1995 (Leo Simpson) (Oatley Electronics kit) Reliable Door Minder July 1995 (03107951) (Rick Walters) (Jaycar kit) 6-12V Alarm Screamer Module (DIY kit) August 1995 Keypad Combination Lock September 1995 (Jeff Monegal) (Oatley Electronics kit) Low-Cost PIR Movement Detector November 1995 (Conrad Marder) (Oatley Electronics kit) Magnetic Card Reader & Display January 1996 (Mike Zenere - own kit) Fit A Kill Switch To Your Smoke Detector February 1996 (Rick Walters) (BS170 From Farnell Electronic Components, Sydney; OR VN10KM from Dick Smith Electronics stores) Low Cost Multi-Tone Dashboard Alarm February 1996 (Julian Edgar) Woofer Stopper Mk.2 (Dog Silencer) February 1996 (03102961) (John Clarke) (Errata: December 1996) (DSE, Jaycar kits) Add Central Locking To Your Car October 1997 (Leo Simpson) (Oatley Electronics kit) Control Panel For Multiple Smoke Alarms Pt 1 January 1997 (03312961-2-3) (John Clarke) Pt 2 February 1997 (DSE, Jaycar kits) (Errata: Feb, April 1997) Video Security System For Your Home September 1997 (Branko Justic) (Oatley Electronics kit) Infrared Sentry (Doorway & Perimeter Minder) April 1999 (Branko Justic) (Oatley Electronics kit) Make Your Burglar Alarm System More Versatile June 1999 (Max Maughan) (Errata: September 1999) Dog Silencer (Woofer Stopper) July 1999 (Branko Justic) (Oatley Electronics kit) RoomGuard: Low-Cost Intruder Alarm April 2000 (03303001) (John Clarke) (Errata: July 2000) Swimming Pool Alarm (03109001) (John Clarke) September 2000 (Jaycar kit) L'il Snooper: Low-Cost Camera Switcher June 2001 (02106011) (Jim Rowe) (Altronics, Jaycar kits) Body Detector (03110011) (Thomas Scarborough) October 2001 A Cheap'N'Easy Motorbike Alarm January 2002 (05101021) (Mick Gergos) (Errata: February 2002) EPC2 http://users.tpg.com.au/micwen/bikealarm Raucous Alarm (03102021) (Thomas Scarborough) January 2002 (Jaycar KC5327) Rolling Code 4-Channel UHF Remote Control July 2002 (Ross Tester) (Oatley Electronics kit) EPC2 (Errata: September 2002 & December 2002) (See Circuit Notebook February 2003 For 5th Channel) Driving Light/Accessories Protector For Cars September 2002 (03109021) (Rick Walters) (Jaycar KC5337) Highly Flexible Keypad Alarm April 2003 (03104031) (John Clarke) (Altronics K1930, DSE K4305, Jaycar KC5352) Telephone Dialler For Burglar Alarms April 2003 (03204031) (Leon Williams) (Altronics K6230, Jaycar KC5348) Shut That Mutt: Dog Silencer Mk2 April 2004 (Branko Justic) (Oatley Electronics K112a) (Errata: July 2004) RFID Security Module June 2004 (03106041) (Peter Smith) (Errata: July 2004, August 2006) (Altronics K9300, DSE K7215, Jaycar KC5393) Fridge Door Open Alarm June 2004 (03206041) (John Clarke) (DSE K7216) The Driveway Sentry November 2004 (Jim Rowe) (Jaycar KC5402 - exclusive kit) VoIP Analog Phone Adaptor September 2005 (03109031) (Ross Tester) (Altronics K2780) (Errata: May 2006) Remote LED Annunciator December 2005 (03112051-2) (Jim Rowe) (Jaycar KC5420) Salvage It! Making An Adjustable Loud Screamer February 2006 (Julian Edgar) A PC-Controlled Burglar Alarm System Pt 1 February 2006 (03102061-2)(Keypad 07203061)(Trent Jackson)Pt 2 March 2006 (Errata: April 2006) 2.4GHz Wireless A/V Link June 2006 (Ross Tester) (Oatley K229) Aquarium Temperature Alarm September 2006 (03109061) (Peter Smith) Garage Door Remote Telltale January 2007 (03101071-2) (Jim Rowe) Rolling Code Keyless Entry System Pt 1 October 2007 (01510071-2) (John Clarke) (Jaycar KC5458) Pt 2 November 2007 (Errata: September 2008) PIC-Controlled Swimming Pool Alarm January 2008 (03101081) (John Clarke) TEST & MEASUREMENT (04) (ETB = "Electronics Test Bench" Project Book) Capacitance Adaptor For Your DMM November 1987 (SC0411287) (John Clarke/Greg Swain) (Ask SC & Errata: March 1988) 1GHz Digital Frequency Meter Pt 1 November 1987 (SC04111871/2/3) (Steve Payor) Pt 2 December 1987 (see Circuit Notebook September 1990) Pt 3 January 1988 Dual Tracking +/- 18.5V Power Supply (SC041188) January 1988 (John Clarke/Leo Simpson) (Altronics kit) ETB Low Ohms Adaptor For Multimeters (SC41388) February 1988 (John Clarke) (Errata: November 1988) Technilab 301 Function Generator (David Whitby) March 1988 pH Meter For Swimming Pools April 1988 (SC42488) (John Clarke) Optical Tachometer For Aeromodellers (SC41688) May 1988 (John Clarke/Greg Swain) (Errata: August 1988) (Jaycar kit) RF Sniffer Probe And Preamplifier June 1988 (SC0410688) (Garry Cratt) (Amateur Radio) (Errata: September 1988, page 80) IHF Tone Burst Source For Amplifier Testing July 1988 (SC41488) (Leo Simpson/John Clarke) AC Millivoltmeter (SC0410888-1) Pt 1 August 1988 (Leo Simpson/Bob Flynn) Pt 2 September 1988 (Drive Modification, Ask SC, September 1996) Universal Power Supply Board For Op Amp Circuits August 1988 (SC04106881) (Leo Simpson) (Errata: Nov 2004) ETB (Altronics K3215, DSE, Jaycar KC5038) Transistor Beta Tester February 1989 (SC0410289-) (Leo Simpson) Experimental Mains Hum Sniffers July 1989 (SC0410589-) (Steve Payor) Low Capacitance Scope Probe (Herb Friedman) August 1989 High or Low Level Fluid Detector (Peter Gray) September 1989 Low Cost Analog Multimeter (Leo Simpson) November 1989 Two-tone Oscillator For Testing SSB Transmitters November 1989 (Gary Cratt - Amateur Radio) High Quality Audio Sine/Square Oscillator Pt 1 January 1990 (SC0410190) (Leo Simpson) Pt 2 February 1990 Relative Field Strength Meter April 1990 (SC0410390) (Ralph Holland) +/- 50V 1.5A Dual Tracking Power Supply April 1990 (SC0410490) (John Clarke/Greg Swain) (Errata: October 1990) 4-Digit Capacitance Meter (SC0410690) May 1990 (John Clarke/Greg Swain) (see also January 1991 for LCD readout, May 2001 for crystal timebase) (DSE kit) Load Protector For Power Supplies June 1990 (SC0420490) (John Clarke/Leo Simpson) Build This Low Cost Dual Power Supply July 1990 (SC0410790) (John Crichton) Digital Sine/Square Wave Generator Pt 1 July 1990 (SC0410890) (John Clarke) Pt 2 August 1990 (Altronics, DSE kits) Build This Low Cost 3-Digit Counter Module September 1990 (SC0430990) (Darren Yates) (Errata: October 1990) (Jaycar kit) (see Ask SC April 1994 for debounce circuit) DC Offset For Digital Multimeters October 1990 (SC0420990) (John Clarke) LCD Readout For The Digital Capacitance Meter January 1991 (Refer May 1990 project) (Barry Naujok) Build This Low Cost Sinewave Oscillator February 1991 (SC04102911) (Darren Yates) Transistor Beta Tester Mk 2 March 1991 (SC04103911) (John Clarke) Digital Altimeter For Gliders And Ultralights (SC04108911-3) Pt 1 September 1991 (John Clarke) Pt 2 October 1991 (Errata: January 1992) Pt 3 November 1991 Magnetic Field Strength Meter October 1991 (SC04211911-2) (John Clarke) Adjustable 0-45V 8-Amp Power Supply Pt 1 January 1992 (SC04201921) (John Clarke) (Altronics kit) Pt 2 February 1992 (Refer April 1998 for revised & updated version) Differential Input Buffer For Oscilloscopes April 1992 (SC04204921) (John Clarke) The Eliminator (Power Supply For Personal Radios) May 1992 (SC04104921) (Marque Crozman) Dummy Load Box For Large Audio Amplifiers August 1992 (Leo Simpson) General-Purpose 3 1/2 Digit Panel Meter September 1992 (SC04110921) (Darren Yates) (DSE kit) Audio Level/VU Meter With LED Readout February 1993 (Bernie Gilchrist) (DSE kit) 24-Hour Sidereal Clock For Astronomers March 1993 (04103931) (Bob Flynn) Audio Power Meter (01105931) (Darren Yates) April 1993 (Altronics, DSE kits) Three-Function Home Weather Station April 1993 (04201931-2) (John Clarke) Digital Clock With Battery Back-Up April 1993 (SC04101931-3) (Darren Yates) Digital Voltmeter For Your Car June 1993 (04105931-2) (Darren Yates) (Errata: July 1996) 20EPC (DSE, Jaycar kits) Microprocessor Based Sidereal Clock August 1993 (John Western - own kit) In-Circuit Transistor Tester (04109931) September 1993 (Darren Yates) (DSE, Jaycar kits) ETB Binary Clock October 1993 (Michael Vos) (Prototype Electronics kit) Jumbo Digital Clock (04108931) (Darren Yates) November 1993 Low-Voltage LED Stroboscope December 1993 (04112931-2-3) (Darren Yates) 40V 3A Variable Power Supply Pt 1 January 1994 (04202941) (John Clarke) Pt 2 February 1994 (Errata: October 1994) (Altronics kit) ETB Discrete Dual Supply Voltage Regulator (04103941) April 1994 (Darren Yates) (Errata: Sept 1994) Digital Water Tank Gauge April 1994 (Jeff Monegal) Kit no longer available Induction Balance Metal Locator (04305941) May 1994 (John Clarke) (Errata: June 1994) (Altronics, DSE, Jaycar kits) (Ref Circuit Notebook, May 1996, For Larger Search Coils) PC-Based Nicad Battery Monitor June 1994 (07103941) (Darren Yates) Simple Go/No-Go Crystal Checker August 1994 (04106941) (Darren Yates) (Altronics, DSE kits) ETB Beginner's Variable Dual-Rail Power Supply October 1994 (04110941) (Darren Yates) ETB (Altronics, DSE kits) Temperature Controlled Soldering Station October 1994 (Jeff Monegal) Kit no longer available The Ol' Timer: An Alphanumeric Clock With November 1994 Old-Fashioned Time (Anthony Nixon) 3-Spot Low Distortion Sinewave Oscillator December 1994 (01110941) (Darren Yates) HexTemp: 6-Channel Thermometer With LCD Readout February 1995 (John Western - own kit) Lightning Distance Meter March 1995 (08103951) (Darren Yates) Low-Cost Transistor & Mosfet Tester for DMMs May 1995 (04306951) (John Clarke) (DSE kit) ETB Build A Digital Multimeter For Only $30 June 1995 (Leo Simpson/Rick Walters) (Altronics, DSE K1044) Audio Lab: A PC-Controlled Audio Test Pt 1 August 1995 Instrument (Roger Kent) (RSK kit) Pt 2 September 1995 Compact Geiger Counter (04310951) October 1995 (John Clarke) (Jaycar kit) Digital Speedometer & Fuel Gauge Pt 1 October 1995 (Jeff Monegal) Pt 2 November 1995 (Obsolete: kit & chip no longer available) Basic Logic Trainer (Rex Callaghan) (DSE kit) February 1996 Zener Diode Tester For Your DMM March 1996 (04302961) (John Clarke) (DSE kit) ETB Simple Battery Tester For Around $5 (John Clarke) March 1996 High Voltage Insulation Tester May 1996 (04303961) (John Clarke) (Errata: June 1996) ETB (Altronics, DSE, Jaycar kits) Low Ohms Tester For Your DMM (04305961) June 1996 (John Clarke) (DSE, Jaycar kits) ETB Build The Minilog: An 8-Bit Data Logger July 1996 (Anthony Mott) (MicroZed Computers kit) VGA Digital Oscilloscope Pt 1 July 1996 (04307961-4) Pt 2 August 1996 (John Clarke) Pt 3 September 1996 Sound Level Meter December 1996 (04312961) (John Clarke) (Altronics, DSE kits) ETB Pink Noise Source (04312962) (John Clarke) January 1997 (Altronics, DSE kits) (Errata: January 2001) ETB Digi-Temp Temperature Monitor (Graham Blowes) January 1997 (Mantis Micro Products kit) (Errata: April 1997) Computer Controlled Dual Power Supply Pt 1 January 1997 (04101971-2) (Rick Walters) Pt 2 February 1997 Low-Cost Analog Multimeter February 1997 (Leo Simpson) (DSE kit) Jumbo LED Clock (04302971-2) (John Clarke) March 1997 AudiOhm Audible Continuity Tester March 1997 (04103971) (Rick Walters) (Jaycar kit) Digital Voltmeter For Your Car April 1997 (04304971-2) (John Clarke) A PC-Controlled Thermometer/Thermostat June 1997 (Mark Roberts) (Softmark Software/Parts) (See also November 2000) Signal Tracer For Audio & RF (04106971) June 1997 (Rick Walters) (Errata: August 1997) (Altronics, DSE & Jaycar kits) Simple Waveform Generator July 1997 (John Clarke) (01307971) (Jaycar kit) TENS Unit For Pain Relief August 1997 (04307971) (John Clarke) (DSE K3702 - discontinued) 5-Digit Tachometer (04310971-2) October 1997 (John Clarke) (Jaycar kit) (Errata: April 1998, February 2004) PC-Controlled 6-Channel Voltmeter (07110971) October 1997 (Mark Roberts) (Parts & Software From Softmark) Easy-To-Use Cable & Wiring Tester November 1997 (04411971) (Leon Williams) ETB Telephone Exchange Simulator For Testing February 1998 (Mike Zenere - kit available) ETB Demo Board For Liquid Crystal Displays February 1998 (04102981) (Rick Walters) PC-Controlled Liquid Crystal Display Board March 1998 (04104981) (Rick Walters) PC-Controlled 0-30kHz Sinewave Generator April 1998 (Mark Roberts) (Softmark kit) Revised 40V 8A Adjustable Power Supply Pt 1 April 1998 (04304981) (John Clarke) (Ref Jan/Feb 92) Pt 2 May 1998 (Altronics kit) 3-LED Logic Probe May 1998 (04104981) (Rick Walters) (Altronics, Jaycar kit) ETB (See August 2004 for modified version Altronics K2586) Elementary Detector For Metal Objects May 1998 (04405981) (John Clarke) (Altronics, DSE, Jaycar kits) Automatic Semiconductor Analyser (04107981) July 1998 (Transistor Tester) (Designed By Andy Wood) Lab Quality AC Millivoltmeter Pt 1 October 1998 (01510981-2) (John Clarke) Pt 2 November 1998 Thermocouple Adaptor For DMMs (04111981) December 1998 (Rick Walters) (DSE, Jaycar kits) (Errata: Jan 99) High-Voltage Megohm Tester January 1999 (04301991) (John Clarke) (Altronics, Jaycar kits) Low Distortion Audio Signal Generator Pt 1 February 1999 (01402991-2) (John Clarke) (Errata: May 99) Pt 2 March 1999 (Errata: August 2000) (Altronics, Jaycar kits) Digital Capacitance Meter (04101991-2) February 1999 (Rick Walters) (Altronics, Jaycar kits) ETB (Errata: May & June 1999) Remote Control Tester February 1999 (Leo Simpson) (Oatley Electronics kit) ETB Digital Anemometer (Wind Speed Meter) March 1999 (Julian Edgar) (Altronics kit) 3-Channel Current Monitor With Data Logging March 1999 (Mark Roberts) (Parts from Softmark) Programmable Thermostat/Thermometer April 1999 (Keith Rippon) A 10uH to 19.99mH Inductance Meter (04107991) July 1999 (Rick Walters) (Altronics, Jaycar kits) ETB PC Monitor Checker (04108991) (C C Roher) August 1999 (Altronics K2720, Jaycar) (refer Circuit Notebook November 1999 for refinements) Switching Temperature Controller (Ross Tester) August 1999 (Oatley Electronics kit) (Errata: October 1999, February 2000) Digital Electrolytic Capacitance Meter September 1999 (04109991) (Eugene W Vahle Jr) (Jaycar kit) Semiconductor Curve Tracer October 1999 (04110991-2) (Charles Hansen) Solar Panel Regulator December 1999 (Alan Bonnard) (Futurlec kit) The Fortune Finder Metal Locator December 1999 (04303001) (John Clarke) An Audio-Video Test Generator (04101001) January 2000 (Leon Williams) (Altronics K2718, DSE, Jaycar) RCD Safety Switch Checker (John Clarke) February 2000 (Altronics, Jaycar kits) Sine/Square Wave Generator/Oscillator February 2000 (04102001) (Rick Walters) (Altronics, Jaycar kits) (refer Circuit Notebook May 2001 for metering) Electronic Wind Vane With 16-LED Display March 2000 (04103001-2-3-4) (John Clarke) Temperature Logger (Mark Roberts) (Softmark kit) April 2000 Automatic Rain Gauge (04105001) (John Clarke) June 2000 (Jaycar kit) (Errata: February 2001) Li'l PowerHouse Switchmode Power Supply Pt 1 June 2000 (04106001) (Peter Smith/Leo Simpson) Pt 2 July 2000 (Errata: September 2000, August 2001) (Altronics kit) El Cheapo Musicians Lead Tester (John Clarke) July 2000 Booze Buster Breath Tester (Ross Tester) October 2000 (Oatley Electronics kit) EPC2 Programmable Electronic Thermostat/Thermometer November 2000 (Michael Jeffery) (Clinch Security Systems kit) Software from Softmark (Refer project June 1997) Parallel Port LCD & Thermostat December 2000 (Peter Crowcroft/Frank Crivelli) (Jaycar kit) A Morse Clock (06112001) (Leon Williams VK2D0B) December 2000 The Wavemaker: An Arbitrary Waveform Generator January 2001 (04101011) (David Sibley) BIG Digit 12/24-Hour Clock (0410311-2) March 2001 (John Clarke) (Errata: May 2001, September 2001) (www.kitsrus.com kit 73) Microcontroller-Based 4-Digit Counter Modules May 2001 (Peter Crowcroft/Frank Crivelli) (Jaycar kits) (Errata: June 2001) The Heartmate: Heart Rate Monitor July 2001 (04107011-2) (John Clarke) (Altronics K8050) Pic-Toc: A Simple Digital Alarm Clock July 2001 (04207011) (Michael Moore) (Altronics K8510) 6-Digit Frequency Counter Module August 2001 (04108011-2) (David L Jones) Automotive Thermometer (05110011-2) October 2001 (John Clarke) (Altronics K4349) PICFun eTimer 4-Way Event/Race/Anything Timer February 2002 (Ross Tester) (eLabtronics kit) Tank Water Level Indicator April 2002 (05104021) (Allan March) (See July 2007 for updated version) Multi-Power Bench Power Supply April 2002 (04104021-2) (Jim Rowe) (Altronics K3200, DSE kit, Jaycar KC5331) Multi-Mode Timer (Frank Crivelli/Peter Crowcroft) April 2002 (Ozitronics kit) Matchless Metal Locator (04106021) June 2002 (Thomas Scarborough) (DSE kit K3014) Digital Storage Logic Probe For Windows 98 August 2002 (04308021) (Trent Jackson/Ross Tester) (Errata: October 2002) Digital Thermometer/Thermostat (04208022) August 2002 (John Clarke) (Altronics K6110, DSE K3016) (Errata: October 2002) (See PID Temperature Controller, July 2007) Sound Card Interface For PC Test Instruments August 2002 Including Oscilloscope (04108021) (Peter Smith) (See Circuit Notebook May 2003 for modification) 50W DC Electronic Load (04109021) (Peter Smith) September 2002 (DSE K3444) (Errata: September 2004) Whistle & Point Cable Tracer (Jim Rowe) October 2002 (Oatley Electronics kit) (Errata: December 2002) 4-Digit Crystal-Controlled Timing Module: November 2002 Stopwatch, Photographic Timer, Frequency Meter, Programmable Down Timer (Frank Crivelli/ Peter Crowcroft) (K148 Start/Stop Timer kits from Ozitronics and Oatley Electronics) 10MHz DDS Function Generator May 2003 (04105031) (David L Jones) http://alternatezone.com/electronics/dds.htm Printer Port Tester (Hardware Simulator) May 2003 (07105031) (PCB# amended in notes/errata June 2003) (Jim Rowe) (DSE kit K3609) Digital Reaction Timer (04106031) (Jim Rowe) June 2003 (Jaycar KC5360) Programmable Continuity Tester July 2003 (04207031) (Trent Jackson) (Jaycar KC5362) (Errata: December 2005) Digital Timer For Less Than $20.00 August 2003 (Jess Benning/Ross Tester) Current Clamp Adaptor For Multimeters September 2003 (04109031) (John Clarke) (Errata: May 2004) (Altronics K2582, Jaycar KC5368) 13.5V 17A Bench Supply October 2003 (Uses Old PC Power Supply) (Col Hodgson) Portable 50MHz Frequency Meter October 2003 (04110031-2-3) (John Clarke) (Altronics K2540, DSE K7001, Jaycar KC5369) (Errata: November 2003, January 2004) Programmable PIC-Powered Timer (Master of Time) November 2003 (04111031) (Trent Jackson) MiniCal 5V Meter Calibration Standard December 2003 (04112031) (Barry Hubble) (Errata: April 2004) PIC-Based Car Battery Monitor December 2003 (Alan Bonnard) (Kit from www.futurlec.com only) Shorted Turns Tester (refer EA August 1998) February 2004 (ZA1137) (Bob Parker) (DSE K7205) ESR Meter Mk2 Pt 1 March 2004 (ZA1044) (Bob Parker) Pt 2 April 2004 (Altronics K2574, DSE K7214) Simple DC Power Supply March 2004 (04103041) (Peter Smith) (Errata: May 2004) Poor Man's Metal Locator May 2004 (04105041) (Thomas Scarborough) Appliance Energy Meter Pt 1 July 2004 (04107041-2) (John Clarke) Pt 2 August 2004 (Altronics K4600, DSE K7217) Poor Man's Q Meter (Maurie Findlay) July 2004 Regulated 125W HV Power Supply For Valve July 2004 Amplifiers (Modified PC Power Supply) (Leonid Lerner) 3-State Logic Probe August 2004 (Modified version of May 1998 project) (Altronics K2586) IR Remote Checker January 2005 (04101051) (Jim Rowe) (DSE K3055, Jaycar KC5407) 4-Minute Shower Timer January 2005 (Ross Tester) (Gum Leaf Energy kit) Inductance & Q-Factor Meter (04102051) Pt 1 February 2005 (Leonid Lerner) (Errata: July 2005 Jan 2006)Pt 2 March 2005 Salvage It! A $10 Lathe & Drill Press Tachometer March 2005 (Julian Edgar) Sports Scoreboard Pt 1 March 2005 (Jim Rowe) Pt 2 April 2005 (Jaycar exclusive KC5408) Pt 3 May 2005 See August 2005 for Enhanced Model Salvage It! An Automatic Stopwatch Timer May 2005 (Julian Edgar) The Mesmeriser LED Clock June 2005 (Scott Melling) (Jaycar KC5404/KC5416) Alternative Power Regulator (Shunt Regulator) June 2005 (Ross Tester) (Oatley Electronics K222) (Errata: August 2005) Salvage It! A Voltmeter For Almost Nothing June 2005 (Julian Edgar) Salvage It! Salvaging & Using Common Thermostats July 2005 Programmable Flexitimer (Digital Timer) August 2005 (04108051-4) (Jim Rowe) (DSE K3580, Jaycar KC5415) (Errata: December 2005) Enhanced Sports Scoreboard August 2005 (Ref Project March-May 2005) (Jim Rowe) (Jaycar kit) Salvage It! Washing Machine Pressure Switches August 2005 Build Your Own Seismograph September 2005 (04105091) (Dave Dobeson) (No kit - PICAXE processor from MicroZed or Altronics) Salvage It! A $5 2-Channel Vibration Sensor October 2005 (Julian Edgar) PICAXE-Based 433MHz Wireless Thermometer January 2006 (Stan Swan) PICAXE-Powered Thermostat & Temperature Display February 2006 (Michael Jeffery) (Errata: April 2006) (Parts from Clinch Electronic Systems) Salvage It! A Low-Cost Large-Display Anemometer March 2006 (Julian Edgar) Pocket A/V Test Pattern Generator (Mick Gergos) June 2006 (Altronics K2725) Programmable Analog On-Off Controller July 2006 (Greg Radion) (Ocean Controls kit) Novel PICAXE LED Chaser Clock August 2006 (AXE115S) (Ron Russo/Clive Seager) 1000:1 UHF Prescaler For Frequency Counters October 2006 (04110061) (Jim Rowe) 12V Digital Clock Timer October 2006 (ZA0019-ZA0020) (Bill De Rose) (DSE K3582) Radar Speed Gun (DOPPLER1-2) Pt 1 November 2006 (Jim Rowe) (Jaycar exclusive KC5429) Pt 2 December 2006 HeartBeat CPR Trainer December 2006 (04112061) (Jim Rowe/Ross Tester) Low-Cost 50MHz Frequency Meter Mk 2 February 2007 (04110031-2-3) (John Clarke) (Jaycar KC5440) PICAXE Bike Computer Ammeter February 2007 (Stan Swan) Simple Digital Panel Meter - Ammeter & Voltmeter March 2007 (Ross Tester) (Revised Circuit: June 2007) GPS-Based Frequency Reference Pt 1 March 2007 (04103071-2) (Jim Rowe) Pt 2 April 2007 Modifications & Additions Pt 3 May 2007 Stereo VU/Peak Meter With LCD Bargraphs May 2007 (01205071-2) (John Clarke) (Jaycar KC5447) Simple Digital Panel Meter - Revisited June 2007 (Ross Tester) (Refer Project March 2007) Build A 6-Digit Nixie Clock Pt 1 July 2007 (NX14L/NX14U) (David Whitby) Pt 2 August 2007 (Gless Audio kit) Tank Water Level Indicator MkII July 2007 (05104022) (Allan March) (Errata: August 2007) (Refer Project April 2002) (Jaycar KC5449) PID Temperature Controller July 2007 (Leonid Lerner) (Refer Project August 2002) Data Logging Weather Station Pt 1 September 2007 (04109071-2) (Glenn Pure) Pt 2 October 2007 (Errata: November 2007) PICProbe: A Versatile Logic Probe October 2007 (04110071) (Ross Purdy) (Altronics K2587, Jaycar KC5457) PIC-Based Water Tank Level Meter Pt 1 November 2007 (04111071) (John Clarke) (Errata: Jan 2008) Pt 2 December 2007 Base Station (04101081-2) Pt 3 January 2008 (Jaycar KC5460, KC5461, KC5462) (Errata: September 2008) Improving The Water Tank Level Meter January 2008 Pressure Sensor (John Clarke) PIC Programmer SOIC Converter November 2007 (04211071) (John Clarke) Low-Cost LPT-To-I2C Interface For Debugging March 2008 (04203081) (Jim Rowe) 1pps Driver For Quartz Clocks March 2008 (04103081) (Jim Rowe) High-Accuracy Digital LC Meter May 2008 (04105081) (Jim Rowe) (Altronics K2533) PIC-Based Flexitimer Mk.4 June 2008 (EC8284) (Jim Rowe) (Jaycar KC5464) PIC-Based Musical Instrument Tuning Aid July 2008 (04107081) (Jim Rowe) (Altronics K1124) PICAXE 20M LED Thermometer (Stan Swan) July 2008 LED Strobe & Tachometer Pt 1 August 2008 (04108081-4) (John Clarke) Pt 2 September 2008 (Altronics K2510) USB Clock With LCD Readout Pt 1 October 2008 (04110081) (Mauro Grassi) Errata & Pt 2 November 2008 Digital RF Level & Power Meter October 2008 (04210081-3) (Jim Rowe) Special Function Timer October 2008 (05110081 or 05car081) (John Clarke) (Altronics K6140) Test The Salt Content Of Your Swimming Pool December 2008 (Leo Simpson) GPS-Synchronised Clock (Analog) March 2009 (04203091) (Geoff Graham) (Altronics K?TBA) (Errata: April 2009, May 2009) Low-Cost Digital Audio Millivoltmeter March 2009 (04103091) (Jim Rowe) The uCurrent: Microcurrent DMM Adaptor April 2009 (David L Jones) (Kit from alternatezone.com) Precision 10V DC Reference For Checking DMMs May 2009 (04305091) (Jim Rowe) Input Attenuator For The Digital Audio May 2009 Millivoltmeter (04205091) (Jim Rowe) 6-Digit GPS Clock (04105091) (Jim Rowe) Pt 1 May 2009 GPS Clock Driver (07106091) Pt 2 June 2009 (EM-408 GPS engine module from Altronics, PCBs and pre-programmed PIC from RCS Radio) Smart Battery Capacity Meter June 2009 (04206091) (Mauro Grassi) Digital Audio Oscillator June 2009 (Darian Lovett/Mauro Grassi (Altronics K2543) PICAXE Humidity Measuring Using The HopeRF HH10D June 2009 (Wayne Geary/Stan Swan) AUTOMOTIVE (05) 20EPC = "20 Electronic Projects for Cars" Book (SOLD OUT) EPC2 = "Electronic Projects For Cars Vol Two" Book (2003) Protector Car Burglar Alarm (SC310188) February 1988 (John Clarke) (Errata: August 1988) UHF Remote Alarm Switch For Car Burglar Alarms March 1988 (SC031288) (John Clarke) (Errata: June 1988, July 1988, October 1988) (See also Kit Clinic: January 1989) Ultrasonic Car Burglar Alarm (Branko Justic) May 1988 High Energy Ignition For Your Car (SC51588) May 1988 (Leo Simpson/John Clarke) (Errata: April 1993, 20EPC December 1998) (Altronics, DSE, Jaycar kits) (See also Ask SC Feb 89, Aug 89, March 92 re tacho connection) (See also Ask SC May 94) High Energy Ignition For Your Car (SC51588) May 1988 (Leo Simpson/John Clarke) 20EPC (See also Circuit Notebook August 1994 & Ask SC August 1998 re optoelectronic ignition) (See also Ask SC November 1997 for Positive Chassis Points Version) Breakerless Ignition (SC51588) (Leo Simpson/ June 1988 John Clarke) (Errata: April 1993, December 1998) 20EPC (See also Ask SC May 1994) (Jaycar kit) Fuel Cut-Off Solenoid For Your Car July 1988 (Circuit Notebook) (Greg Swain) Car Safety Light (SC0511088) (John Clarke) November 1988 (see also Circuit Notebook February 1989) 20EPC Knightrider LED Scanner November 1988 (SC08111881) (Circuit Notebook) (Jaycar kit) Car Antenna Adaptor December 1988 (SC0511188) (John Clarke/Greg Swain) 20EPC Ultrasonic Proximity Detector January 1989 (Car Reversing Alarm) (SC0510289) 20EPC (John Clarke/Greg Swain) (Errata: March 1989) (See Ask SC Aug 92 to add a relay output) Flasher Circuit For Auxiliary Brake Lights April 1989 (SC0510489) (Bob Flynn/Greg Swain) (see Ask SC Dec 89 for 6V modification) Exhaust Gas Monitor For Cars & Vans July 1989 (SC0510789) (Bob Flynn/Leo Simpson) (Gas sensors available from Radiospares, Melbourne) Compact Ultrasonic Car Burglar Alarm July 1989 (Greg Swain) (Errata: October 1989) 20EPC (Oatley Electronics kit) UHF Remote Control Car Alarm Switch December 1989 (Greg Swain) (Errata: January 1994) (DSE kit) Delay Unit For Automatic Antennas March 1990 (SC0510390) (Greg Swain) 20EPC High Energy Ignition For Cars With Reluctor May 1990 Distributors (SC0510690) (John Clarke/Leo Simpson) 20EPC (Errata: April 1993, December 1998) (See also Circuit Notebook, February 1996, for modification) Speed Alarm For Your Car (Peter Gray) June 1990 DC-DC Converter For Car Amplifiers (SC05111901) December 1990 (John Clarke/Greg Swain) (Errata: March 1991) Wiper Pulser For Rear Windows December 1990 (SC05211901) (John Clarke) 20EPC Simple 12/24V Light Chaser April 1991 (SC08106911) (Darren Yates) (Jaycar kit) Battery Discharge Pacer For Electric Vehicles July 1991 (SC11108911) (Dieter Kuenne) LED Digital Tachometer (SC05108911) August 1991 (Darren Yates) (Altronics, DSE K3241, Jaycar kits) 20EPC Flashing Alarm Light For Cars November 1991 (Syd McKitrick) (DSE kit) 20EPC Automatic Controller For Car Headlights January 1992 (Wally Hammer/Jeff Monegal) See Circuit Notebook 20EPC July 1992 for mods. Kit no longer available Thermostatic Switch For Car Radiator Fans March 1992 (SC05204921) (John Clarke) (Errata: June 1992) 20EPC General-Purpose 3 1/2 Digit Panel Meter September 1992 (SC04110921) (Darren Yates) (DSE kit) Easy-To-Build UHF Remote Switch December 1992 (Greg Swain) (Oatley Electronics kit) 20EPC Low Fuel Indicator For Your Car February 1993 (05203931) (John Clarke/Greg Swain) (DSE kit) 20EPC Digital Voltmeter For Your Car June 1993 (04105931-2) (Darren Yates) (Errata: July 1996) 20EPC (DSE, Jaycar kits) 60-LED Brake Light Array For Your Car August 1993 (Leo Simpson) (Oatley Electronics kit) 20EPC Courtesy Light Switch-Off Timer For Cars October 1993 (05209931) (John Clarke) 20EPC Water/Coolant Level Alarm For Your Car Radiator June 1994 (05305941) (John Clarke/Leo Simpson) 20EPC (Errata: February 1995) (Jaycar kit) Talking Headlight Reminder October 1994 (01109941) (Darren Yates) (DSE, Jaycar kits) 20EPC UHF Radio Alarm Pager (Branko Justic) November 1994 (Oatley Electronics kit) An Easy-To-Build Car Burglar Alarm December 1994 (Bernie Gilchrist) (DSE kit) Dual Channel UHF Remote Control January 1995 (Bernie Gilchrist) (DSE kit) Oil Change Timer For Your Car February 1995 (05102951) (Darren Yates) Building A Tube Sub-Woofer March 1995 (Julian Edgar) (Car Sound) A Fuel Injector Monitor For Cars August 1995 (05108951) (Rick Walters/Leo Simpson) (Errata: Sept 1995, Dec 1996) (Jaycar kit) Digital Speedometer & Fuel Gauge Pt 1 October 1995 (Jeff Monegal) Pt 2 November 1995 (Obsolete: kit & chip no longer available) Mixture Display For Fuel Injected Cars November 1995 (05111951) (Julian Edgar) (Jaycar KC5195) EPC2 (See p11 ZOOM EFI Tech Special for modification) Engine Immobiliser For Your Car (05310951) December 1995 (John Clarke) (Errata December 1996) (Altronics, Jaycar kits) Low Cost Multi-Tone Dashboard Alarm February 1996 (Julian Edgar) Programmable Electronic Ignition System For Cars March 1996 (05103961) (Anthony Nixon) (Obsolete) Knock Indicator For Leaded Petrol Engines April 1996 (05302961) (John Clarke) (Altronics, Jaycar kits) Feedback On The Programmable Ignition System September 1996 (Ref Project March 1996) 600W DC-DC Converter For Car Hifi Systems Pt 1 October 1996 (05308961) (John Clarke) (Jaycar kit) Pt 2 November 1996 Teeny Timer: A Low-Tech Timer For Your Car April 1997 (Leo Simpson) Digital Voltmeter For Your Car April 1997 (04304971-2) (John Clarke) Universal Loudspeaker Protector For Stereo April 1997 Amplifiers (01104971) (Leo Simpson/Bob Flynn) (DSE, Jaycar kits) (Errata June 1997) Neon Tube Modulator For Cars & Light Systems May 1997 (05105971) (Rick Walters) (DSE, Jaycar KC5221) The Bass Barrel Subwoofer August 1997 (Julian Edgar) (Altronics kit) Multi-Spark Capacitor Discharge Ignition (CDI) September 1997 (05309971) (John Clarke) (Errata: May 1999) EPC2 (Altronics K4370, DSE K3307, Jaycar KC5232) Add Central Locking To Your Car October 1997 (Leo Simpson) (Oatley Electronics kit) Build A Speed Alarm For Your Car December 1997 (0531197-1-2-3) (John Clarke) (Altronics, Jaycar kits) Loudness Control For Car Hifi Systems December 1997 (01111971) (Rick Walters) (Jaycar kit) Automatic Garage Door Opener Pt 1 April 1998 (05104981-2) (Rick Walters) Pt 2 May 1998 Universal High Energy Ignition System June 1998 (05305981) (John Clarke) (Errata October 1998) EPC2 (Altronics, DSE, Jaycar KC5247)(see Circuit Note- book October 2000 for Opto-electronic version) Blocked Filter Alarm For Your Car September 1998 (Adrian Cuesta) EPC2 Gear Change Indicator For Your Car (05308981-2) September 1998 (John Clarke) (Altronics, Jaycar kits) Turbo Timer For Your Car November 1998 (05411981) (John Clarke) (Errata: February 1999) (Altronics K4060, Jaycar KC5254) Engine Immobiliser Mk.2 December 1998 (05412981) (John Clarke) (DSE, Jaycar KC5255) EPC2 Keypad Engine Immobiliser January 1999 (05401991) (John Clarke) (DSE, Jaycar KC5257) LED Bargraph Ammeter For Your Car (05101991) January 1999 (Rick Walters) (DSE, Jaycar kits) (Errata: May 99) Rev Limiter For Cars (05304991 & 05412981) April 1999 (John Clarke) (Jaycar KC5265) EPC2 (Errata: October 2007) Carbon Monoxide (CO) Alarm May 1999 (05303991) (John Clarke) Programmable Ignition Timing Module For Cars Pt 1 June 1999 (05406991) (Anthony Nixon) Pt 2 July 1999 (Jaycar KC5202 - no longer available - obsolete) EPC2 Daytime Running Lights/Auto Headlight Switch August 1999 (05408991) (John Clarke) (Errata: September 1999) (Altronics, DSE, Jaycar kits) Digital Speed Alarm For Cars Pt 1 November 1999 (05310991-2) (John Clarke) Pt 2 December 1999 (Altronics K4345, Jaycar KC5279) EPC2 (Refer Circuit Notebook February 2006 for Improved Speed Alarm Sensor) Digital Voltmeter For Your Car (05102001) February 2000 (John Clarke) (Errata: March, August 2000) EPC2 (Altronics, DSE, Jaycar kits) Ultrasonic Parking Radar February 2000 (Branko Justic) (Oatley Electronics kit) OzTrip Car Computer (Robert Priestley) Pt 1 March 2000 (Oztechnics kit) Pt 2 April 2000 Digital Tachometer For Your Car April 2000 (05104001-2) (John Clarke) EPC2 (Altronics, DSE, Jaycar KC5290) Digital Fuel Mixture Display For Cars Pt 1 September 2000 (05108001-2) (John Clarke) Pt 2 October 2000 (Altronics K4347, DSE K4213, Jaycar KC5300) Installing A Free-Air Subwoofer In Your Car October 2000 (Julian Edgar) Headlight Reminder For Cars August 2001 (05108011) (John Clarke) EPC2 (Altronics K4348, Jaycar KC5317) Automotive Thermometer (05110011-2) October 2001 (John Clarke) (Altronics kit) Neon Tube Modulator For Cars November 2001 (05111011) (Rick Walters) (Jaycar KC5322) EPC2 A Cheap'N'Easy Motorbike Alarm January 2002 (05101021) (Mick Gergos) (Errata: February 2002) EPC2 http://users.tpg.com.au/micwen/bikealarm 12V Battery Guardian May 2002 (05105021) (John Clarke) (Errata: July 2002) (Altronics K4080, DSE, Jaycar KC5334) Compact 0-80A Automotive Ammeter (05106021-3) June 2002 (John Clarke) (Altronics, DSE, Jaycar KC5336) Driving Light/Accessories Protector For Cars September 2002 (03109021) (Rick Walters) (Jaycar KC5337) Tiptronic-Style Gear Indicator (05101031-2-3) January 2003 (John Clarke) (Altronics K4346, Jaycar KC5344) (Errata: Feb 2003, Dec 2003, Jan 2004) LED Lighting For Your Car March 2003 (05103031-6) (Peter Smith) EPC2 (Jaycar kits KC5354/5/6/7/9) Little Dynamite Subwoofer March 2003 (Julian Edgar) EPC2 Big Blaster Subwoofer (Julian Edgar) May 2003 Adjustable DC-DC Converter For Cars June 2003 (11106031) (John Clarke) (Altronics K6320, DSE K3234, Jaycar KC5358) Digital Instrument Display For Cars Pt 1 August 2003 (05108031-2) (John Clarke) Pt 2 September 2003 (Altronic K4375, DSE K3237, Jaycar KC5365) PIC-Based Car Battery Monitor December 2003 (Alan Bonnard) (Kit from www.futurlec.com only) QuickBrake: Emergency Brake Light Trigger March 2004 AKA Delta Throttle Timer (05103041) (05car071) Also published in Performance Electronics For Cars 2004 (John Clarke/Julian Edgar) (Jaycar KC5373 - kit discontinued) Smart Fuel Mixture Display For Your Car April 2004 (05104041) (John Clarke/Julian Edgar) (Jaycar KC5374) (See also Intercooler Water Spray Controller Add-On, March 2006, KC5422) Courtesy Light Delay For Cars June 2004 (05106041) (John Clarke) (Jaycar KC5392) (Errata: July 2004) Smart Mixture Meter: Performance Electronics For Cars 2004 (05car011) (John Clarke) (Jaycar KC5374) (See also Inter- cooler Water Spray Controller Add-On, March 2006, KC5422) Duty Cycle Meter: Performance Electronics For Cars 2004 (05car021) (John Clarke) (Jaycar KC5375 - discontinued) High Temperature Digital Thermometer With LCD: Performance Electronics For Cars 2004 (05car041) (John Clarke) (Jaycar KC5376) Versatile Auto Timer: Performance Electronics For Cars 2004 (05car081) (John Clarke) (Jaycar KC5379) Universal Voltage Switch: Performance Electronics For Cars 2004 (05car061) (John Clarke) (Jaycar KC5377) (05112081 December 2008) Universal Frequency Switch: Performance Electronics For Cars 2004 (05car051) (John Clarke) (Jaycar KC5378) Digital Pulse Adjuster: Performance Electronics For Cars 2004 (05car131) (John Clarke) (Jaycar KC5384) LCD Hand Controller: Performance Electronics For Cars 2004 (05car141) (John Clarke) (Jaycar KC5386) Peak-Hold Injector Adaptor: Performance Electronics For Cars 2004 (05car151-2) (John Clarke) (Jaycar KC5395 - discontinued) Digital Fuel Adjuster: Performance Electronics For Cars 2004 (05car121) (John Clarke) (Jaycar KC5385) Digital Speedo Corrector: Performance Electronics For Cars 2004 (05car091) (John Clarke) (Jaycar KC5380 - discontinued - replaced with KC5435 (SC December 2006)_ Independent Electronic Boost Controller: Performance Electronics For Cars 2004 (05car131) (John Clarke) (Jaycar KC5387) Nitrous Fuel Controller: Performance Electronics For Cars 2004 (05car111) (John Clarke) (Jaycar KC5382 - discontinued) AKA 12V Speed Controller/Lamp Dimmer (Ref November 2008) (Altronics K6008) Intelligent Turbo Timer: Performance Electronics For Cars 2004 (05car031) (John Clarke) (Jaycar KC5383 - discontinued) V8 Doorbell January 2005 (05101051) (John Clarke) (Jaycar KC5405 & KC5406) (Errata: March 2005) Install Your Own In-Car Video April 2005 (Gary Rollans) (Components from Jaycar) Carbon Monoxide (CO) Alert/Alarm August 2005 (05108051) (John Clarke) (DSE K4614) (Errata: September 2005) Bilge Sniffer/Alarm September 2005 (05109051) (John Clarke) (DSE K4615) RBT Blood Alcohol Concentration (BAC) Checker October 2005 (Alcohol Level Meter) (05090051) (John Clarke) (Errata: November 2005) (No kit - sensor from Jaycar) High-Energy Electronic Ignition System Pt 1 December 2005 (05112051) (John Clarke) Pt 2 January 2006 (Errata: January 2006) (DSE K3305, Jaycar KC5419) Low-Cost Intercooler Water Spray Controller March 2006 (05104041 or 05CAR011) (Julian Edgar) (KC5374/KC5422)(Refer Mixture Meter project April 2004 and Performance Electronics For Cars book) Vehicle Multi-Voltage Monitor May 2006 (05105061) (John Clarke) (DSE K4608, Jaycar KC5424) (See also Circuit Notebook June 2009 for modification) LED Tachometer With Dual Displays Pt 1 October 2006 (05111061-2) (John Clarke) (Errata: Dec 06) Pt 2 November 2006 DC Relay Switch (05211061) (John Clarke) November 2006 (Jaycar KC5434) (Errata: December 2006) Radar Speed Gun (DOPPLER1-2) Pt 1 November 2006 (Jim Rowe) (Jaycar exclusive KC5429) Pt 2 December 2006 Super Speedo Corrector December 2006 (05112061) (John Clarke) (Jaycar KC5435) 12/24V Auxiliary Battery Controller For Vehicles December 2006 (Branko Justic/Ross Tester) (Oatley Kit K227) Temperature Switch January 2007 (05car101) (John Clarke) (Also published in Performance Electronics For Cars 2004) (Jaycar KC5381) (Errata: April 2006) Intelligent Car Air-Conditioner Controller January 2007 (05101071) (John Clarke) (KC5437) Garage Door Remote Telltale January 2007 (03101071-2) (Jim Rowe) Simple Variable Boost Control For Cars February 2007 With Turbochargers (05102072) (Denis Cobley) (Errata: March 2007) (Jaycar KC5438) A Fuel Cut Defeater For Cars With Variable February 2007 Boost Control (05102071) (Denis Cobley) (Errata: March 2007) (Jaycar KC5439) Programmable Ignition System For Cars Pt 1 March 2007 (05104071-3) (John Clarke) Pt 2 April 2007 (Jaycar KC5442) Pt 3 May 2007 (Errata: May 2007, September 2007, November 2007) A Knock Detector For The Programmable Ignition June 2007 System (05106071) (John Clarke) Universal Frequency Switch June 2007 (05car051) (John Clarke) (Also published in Performance Electronics For Cars 2004) (Jaycar KC5378) Adaptive Turbo Timer August 2007 (05108071) (John Clarke) (Jaycar KC5451) Shift Indicator & Rev Limiter For Cars February 2008 (05102081-2) (John Clarke) Replacement CDI Module For Motorbikes/Small May 2008 Petrol Motors (05105081) (John Clarke) (Altronics K4025, Jaycar KC5466) Special Function Timer October 2008 (05110081 or 05car081) (John Clarke) (Altronics K6140) 12V Speed Controller or 12V Lamp Dimmer November 2008 (05111081) (Leo Simpson) (Altronics K6008) AKA Nitrous Fuel Controller (PEC 2004) Wideband Air-Fuel Mixture (Oxygen Sensor) Display November 2008 (05311081) (John Clarke) (Errata: January 2009) Simple Voltage Switch For Car Sensors December 2008 (05112081 or 05car061) (John Clarke) Multi-Purpose Car Scrolling Display Pt 1 December 2008 (05101091-2) (Mauro Grassi) Pt 2 January 2009 (Altronics K4352) Errata & Pt 3 February 2009 School Zone Speed Alert April 2009 (Jim Rowe) (Jaycar KC5472) (Errata: May 2009) RADIO COMMUNICATIONS (06) Subcarrier (ACS) Adaptor For FM Tuners January 1988 (SC0611287) (John Clarke/Leo Simpson) (See also Ask SC November 1992 for modifications) Flexo Shortwave Antenna (Ed Noll) January 1988 Line Isolation Unit For Phone Patch Operation February 1988 (Garry Cratt) (Amateur Radio) RF Sniffer Probe And Preamplifier (SC0410688) June 1988 (Garry Cratt) (Amateur Radio) (See also p80 Amateur Radio September 1988 re circuit diagram) DC-To-DC (Switchmode) Battery Charger September 1988 For 12V Gel Batteries (SC14109881) (Garry Cratt) (Amateur Radio) (Errata: November 1988) FM Stereo Transmitter (Mini-Mitter) (SC0611088) October 1988 (John Clarke/Leo Simpson) (Errata December 1988) (Altronics, DSE, Jaycar kits) Convert A CB Radio To The 28MHz Amateur Band October 1988 (SC0621088) (Garry Cratt) Simple Adaptor To Receive SSB On S/W AM Receivers December 1988 (Garry Cratt) (Amateur Radio) Relative Signal Strength Indicator For Amateur January 1989 Radio Scanners (Garry Cratt) (Amateur Radio) Simple VHF FM Monitor Receiver Pt 1 February 1989 (SC0610389) (Garry Cratt) (Amateur Radio) Pt 2 March 1989 (Errata September 1989) (DSE kit) Simple Stub Filter To Eliminate TV Interference May 1989 (Garry Cratt) (Amateur Radio) Intelligent Charger For 12V Gel Batteries July 1989 (SC11107891) (Garry Cratt) (Amateur Radio) (Altronics kit) GaAsFet Preamplifier For The 2-Metre Band August 1989 (Garry Cratt) (Amateur Radio) Dual Tone Multi-Frequency (DTMF) Encoder For September 1989 Custom Control Circuits (Garry Cratt) (Amateur Radio) 2-Chip Portable AM Stereo Radio Pt 1 September 1989 (SC0610889) (Steve Payor) Pt 2 October 1989 (Errata: May 1990) Pt 3 November 1989 FM Radio Intercom For Motorbikes Pt 1 October 1989 (SC0611189) (John Clarke) (DSE kit) Pt 2 November 1989 Gladesville GaAsFet Amplifier For Amateur TV October 1989 ("Julie" Kentwell) Super Sensitive FM Bug/Wireless Microphone November 1989 (ZA1431) (Greg Swain) (DSE K5006) Two-tone Test Oscillator For SSB Transmitters November 1989 (Garry Cratt) (Amateur Radio) Radfax Decoder (SC0311189) (John Clarke) November 1989 (Errata: June 1990) (Jaycar kit) (Software: Michael Delahunty 07 3358 2785) Simple HF Receiver For The 40-Metre Band December 1989 (SC06112891) (Garry Cratt) (Amateur Radio) (Errata: March 1990) Active Antenna For The Shortwave Bands January 1990 (Greg Swain) (Errata: May 1990) Phone Patch For Radio Amateurs Pt 1 January 1990 (SC12112891)(John Clarke/Greg Swain) Pt 2 February 1990 (Errata: August 1990) Random Wire Antenna Tuner For 6-Metres February 1990 (Garry Cratt) (Amateur Radio) VOX With Delayed Audio April 1990 (SC0610490) (Darren Yates) (Errata: June 1990) Active CW Filter For Weak Signal Reception April 1990 (SC0620490) (Garry Cratt) (Amateur Radio) The Mozzie CW Transceiver (Clive Chamberlain) May 1990 Electronic Load For Checking Power Supplies May 1990 (SC14106902) (Gary Cratt) (Amateur Radio) Simple Converter To Listen To The 2-Metre Band September 1990 On A Shortwave Radio (SC0610990) (Garry Cratt) (Amateur Radio) The 6-Metre "Summertime Special" November 1990 Amateur Transmitter (SC06111901) (Garry Cratt) (Amateur Radio) 5W Power Amplifier For The 6-Metre FM Transmitter December 1990 (SC06101911) (Gary Cratt) (Amateur Radio) Universal Wideband RF Preamplifier March 1991 (SC06103911) (Garry Cratt) (Amateur Radio) Easytune FSK Indicator For HF Transmissions April 1991 (SC06104911) (Garry Cratt) (Amateur Radio) 13.5V 25A Power Supply For Amateur Transceivers (SC14105911-2) Pt 1 May 1991 (John Clarke/Leo Simpson) Pt 2 June 1991 Active Filter To Improve CW Reception June 1991 (SC06106911) (Garry Cratt) (Amateur Radio) PEP Monitor Circuit For Transmitters And July 1991 Transceivers (SC06107911) (Garry Cratt) (Amateur Radio) Simple Turnstile Antenna For Weather Satellite November 1991 Reception (Garry Cratt) (Amateur Radio) Baby Room Monitor (SC06210911) January 1992 (John Clarke) Relative Field Strength Meter September 1992 (SC06110921) (Garry Cratt) (Amateur Radio) FM Radio Receiver November 1992 (SC06111921) (Darren Yates) (DSE kit) PLL Demodulator For FM Amateur Receivers November 1992 (Garry Cratt) (Amateur Radio) Flea-Power AM Radio Transmitter January 1993 (SC0612921) (Darren Yates) AM Radio Trainer (06106931) Pt 1 June 1993 (Marque Crozman/Leo Simpson) (DSE kit) Pt 2 July 1993 Crystal Controlled IF Generator (06107931) July 1993 Build A 6-Metre Handheld Transceiver February 1994 (Garry Cratt) (Amateur Radio) 80-Metre AM/CW Transmitter For Amateurs June 1994 (06106941) (Darren Yates) (DSE K6004 ZA1293) A Microprocessor Controlled Morse Keyer August 1994 (FLC Microdesign kit) (Alaexandre Zatsepin) Dual Diversity Tuner For FM Microphones Pt 1 August 1994 (06307941/2) (John Clarke) Pt 2 September 1994 (Errata: Sept 1994) Minivox Voice Operated Relay (06109941) September 1994 (Darren Yates) (Errata: December 1996) (Altronics, DSE, Jaycar KC5172) AM Radio For Aircraft Weather Beacons (06107941) September 1994 (Darren Yates) (DSE kits) 80-Metre DSB Amateur (Rig) Transmitter November 1994 (06110941) (Leon Williams) (Jaycar kit) Wideband Preamplifier Has Response To 950MHz January 1995 (Garry Cratt) (Amateur Radio) Subcarrier Decoder (ACS) For FM Receivers March 1995 (06103951) (John Clarke) (Jaycar kit) Simple 2-Transistor CW Filter March 1995 (06104951) (Darren Yates) FM Radio Trainer Pt 1 April 1995 (06303951) (John Clarke) (DSE kit) Pt 2 May 1995 Mains Music Transmitter & Receiver May 1995 (Jeff Monegal) (Errata: July 1995) Kit no longer available CB Transverter For The 80M Amateur Band Pt 1 November 1995 (Leon Williams) Pt 2 December 1995 3-Band HF Amateur Receiver September 1996 (06109961) (Leon Williams) (DSE kit) Active Filter For CW Reception December 1996 (06112961) (Leon Williams) FM Radio Tuner Card For Your PC (06106991) June 1999 (Mark Roberts) (Jaycar kit) (Errata: August 1999) (See Circuit Notebook December 1999 For Power-On Muting) A Morse Clock (06112001) (Leon Williams VK2D0B) December 2000 The Minimitter (Miniature FM Stereo Transmitter) April 2001 (06104011) (John Clarke) (Altronics, DSE, Jaycar kits) Direct Conversion Receiver For The 7MHz Pt 1 July 2002 Amateur Band (06107021) (Leon Williams) Pt 2 August 2002 Micromitter: Miniature FM Stereo Transmitter December 2002 (06112021) (John Clarke) (Jaycar KC5341, DSE K5009) Simple VHF FM/AM Regenerative Receiver December 2002 (06212021) (Andrew Woodfield) (DSE K5015) (Errata: April 2003) Homebrew Weatherproof 2.4GHz WiFi Antennas August 2003 (06108031) (Rob Clark) Smart Radio Modem For Microcontrollers November 2003 (06111031) (Nenad Stojadinovic) (Altronics K9000) VHF Receiver For Weather Satellites December 2003 (06112031) (Jim Rowe) (DSE K3226) (Errata: Jan 2004 p38, Feb 2004, April 2004, October 2004) Antenna & RF Preamp For Weather Satellites January 2004 (06101041) (Jim Rowe) (Errata: April 2004) 'WiFry': 2.4GHz WiFi Antenna (Stan Swan) September 2004 Yagi Antenna For UHF CB (Stan Swan) February 2005 PICAXE Data Over 477MHz UHF CB (Stan Swan) March 2005 433MHz Wireless Data Communication December 2005 (Stan Swan) "Little Jim" AM Radio Transmitter (Jim Rowe) January 2006 (06101061 DSE version) (06101062 Altronics/Jaycar versions) Minispot 455kHz Modulated Oscillator January 2008 (06101081) (Mauro Grassi) (Errata: July 2008) Digital VFO With LCD Graphics Display March 2008 (06103081) (Andrew Woodfield) Planet Jupiter Receiver (Ref Radio Jove) August 2008 (06108081) (Jim Rowe) (Altronics K1127) COMPUTERS (07) End Of File Indicator For Modems February 1988 (SC71288) (Greg Swain) (See Circuit Notebook May 1988 For Refinements) A Line Filter For Your Computer (Mains Muzzler) January 1989 (SC10101891) (Leo Simpson) Simple Computer Sound Repeater January 1989 (SC07104891) (Leo Simpson/John Clarke) Build Your Own LED Message Board (Don McKenzie) Part 1: Overview March 1989 Part 2: How The Interface Circuitry Works April 1989 Part 3: Building The Message Board Control Unit May 1989 Part 4: Building & Testing The Display Panel June 1989 Biofeedback Monitor For Your PC (Jim Barbarello) May 1989 Build A "Baby Tower" AT-Compatible Kit Computer August 1989 (Greg Swain) (Electronic Solutions kit) 1Mb Printer Buffer (Don McKenzie - kit) October 1989 Radfax Decoder (SC0311189) (John Clarke) November 1989 (Errata: June 1990) (Jaycar kit) (Software: Michael Delahunty 07 3358 2785) Digital Voice Recorder Board December 1989 (SC07111891) (John Clarke) Multi Purpose I/O Board For IBM PCs March 1991 (Graham Dicker) (PC Computers) PC Voice Recorder (SC07107911) (Darren Yates) August 1991 Build This Fax/Modem For Your Computer September 1991 (Leo Simpson) (PC Marketplace kit) PC Talking Voltmeter Pt 1 October 1991 (SC07110911) (Darren Yates) Pt 2 November 1991 (Errata: December 1991) Compact Digital Voice Recorder (Leo Simpson) February 1992 MAL 4.03 Microcontroller Board Pt 1 November 1992 (Barry Rozema) Pt 2 December 1992 Part 3 Pt 3 February 1993 Alphanumeric LCD Demonstration Board May 1993 (07106931) (Darren Yates) (Altronics kit) Windows-Based Digital Logic Analyser Pt 1 June 1993 (Jussi Jumppanen - own kit) Pt 2 July 1993 The Southern Cross Computer (DIY Electronics kit) August 1993 (Peter Crowcroft/Craig Jones) Peripherals For The Southern Cross Z80 Computer December 1993 Printer Status Indicator For PCs January 1994 (07101941) (Darren Yates) Control Stepper Motors With Your PC (07201941) January 1994 (Marque Crozman) (Altronics, Jaycar kits) PC-Based Nicad Battery Monitor June 1994 (07103941) (Darren Yates) SmallTalk: Tiny Voice Digitiser For The PC July 1994 (Darren Yates) A Low-Cost MIDI Adaptor For Your PC Or Amiga July 1995 (George Hansper) Audio Lab: A PC-Controlled Audio Test Pt 1 August 1995 Instrument (Roger Kent) (RSK kit) Pt 2 September 1995 Build A PC-Controlled Robot From Surplus Parts November 1995 (Tony Mercer) (Refer Stepper Motor article, SC January 1994) Test Your Reaction Time Using A PC February 1996 (Rick Walters) Build The Minilog: An 8-Bit Data Logger July 1996 (Anthony Mott) (MicroZed Computers kit) Multimedia Sound System (01110961) (Rick Walters) Pt 1: Bridged Amplifiers On A PC Card: TDA1519A October 1996 Pt 2: Loudspeakers November 1996 (Errata: February 1997, July 1997) (Altronics, Jaycar kits) Digi-Temp Temperature Monitor (Graham Blowes) January 1997 (Mantis Micro Products kit) (Errata: April 1997) Computer Controlled Dual Power Supply Pt 1 January 1997 (04101971) (Rick Walters) Pt 2 February 1997 PC-Controlled Moving Message Display February 1997 (John Western) (ex-Oatley Electronics kit) Teletext Decoder For Your PC (Chris Schach/ May 1997 Braden Phillips) (Current Dynamics kit) The Spacewriter Message Wand May 1997 (08305971) (John Clarke) (Jaycar kit) A PC-Controlled Thermometer/Thermostat June 1997 (Mark Roberts) (Softmark Software/Parts) (See also November 2000) A Flexible Interface Card For PCs July 1997 (Rick Walters) (07107971) (Errata: August 1997, October 1997, November 1997) (Jaycar KC5230) Addressable Card For Driving A Stepper Motor August 1997 (07108971) (Rick Walters) (Errata November 1997) Addressable Card For Controlling September 1997 Two Stepper Motors (07208971) (Rick Walters) (Errata: November 1997) PC-Controlled 6-Channel Voltmeter (07110971) October 1997 (Mark Roberts) (Parts & Software From Softmark) A 2-Axis Robot With Gripper December 1997 (Graeme Matthewson) (Oatley Electronics kit) Stepper Motor Driver With Onboard Buffer December 1997 (07109971) (Rick Walters) (Jaycar kit) (Errata: January 1998) PC-Controlled Liquid Crystal Display Board March 1998 (04104981) (Rick Walters) PC-Controlled 0-30kHz Sinewave Generator April 1998 (Mark Roberts) (Softmark kit) A Chook Raffle/Random Number Generator Program April 1998 For Your PC (Rick Walters) (Errata: December 1998) Simple I/O Card With Automatic Data Logging August 1998 (Mark Roberts) (Parts from Softmark) Stress-O-Meter (07111981) October 1998 (Rick Walters) Getting Going With BASIC Stamp January 1999 (Ross Tester/Bob Nicol) (DSE, MicroZed kits) 3-Channel Current Monitor With Data Logging March 1999 (Mark Roberts) (Parts from Softmark) DIY PIC Programmer (Oatley Electronics kit) March 1999 (Michael Covington/Ross Tester) XYZ Table With Stepper Motor Control (Ken Ferguson & Rick Walters) Part 1: Introduction May 1999 Part 2: Building The X-Y Table June 1999 Part 3: Building The Z Axis July 1999 Part 4: Motor Control Boards (07208991-2) August 1999 Part 5: Power Supply & Software (10108993) September 1999 Part 6: Pen Holder & Plotting Procedure October 1999 FM Radio Tuner Card For Your PC (06106991) June 1999 (Mark Roberts) (Jaycar kit) (Errata: August 1999) (See Circuit Notebook December 1999 For Power-On Muting) Remote Modem Controller (07408991) August 1999 (Leon Williams) (Jaycar kit) (Errata: March 2000) PC Monitor Checker (04108991) (C C Roher) August 1999 (Altronics, Jaycar kits) (refer Circuit Notebook November 1999 for refinements) Voice Direct Speech Recognition September 1999 (07109991) (Ross Tester) (Errata: October 1999) (Adilam Electronics kit) PC Powerhouse (12112991) (Barry Hubble) December 1999 (Jaycar kit) (Errata: January 2000) Parallel Port I/O Card For PCs January 2000 (Peter Smith) (DSE kit K2805) AT Keyboard Translator (Steve Carroll/Bob Nicol) May 2000 (Control Electronics/MicroZed Computers kits) PC-Controlled VHF FM Receiver (Mark Roberts) June 2000 (Softmark kit) (Errata: Sept 2000, March 2001) Moving Message Display (Atilla Aknar) July 2000 (obsolete - software no longer available) 8-Channel PC Relay Board September 2000 (Ross Tester) (Oatley Electronics kit) Programmable Electronic Thermostat/Thermometer November 2000 (Michael Jeffery) (Clinch Security Systems kit) Software from Softmark (Refer project June 1997) Parallel Port LCD & Thermostat December 2000 (Peter Crowcroft/Frank Crivelli) (Jaycar kit) PIC Programmer & TestBed (07101011) January 2001 (Barry Hubble/Peter Smith) (DSE K3603) (Errata: March 2001, November 2006) MIDI-Mate: A MIDI Interface For PCs (01201011) February 2001 (Jim Rowe) (Jaycar kit) (Errata: February 2003) More-MIDI: A Simple MIDI Expansion Box March 2001 (01103011) (Jim Rowe) Parallel Port PIC Programmer & Checkerboard March 2001 (David Deer ddeer@myisp.net.au) (Errata: April 2001, July 2001) (Jaycar kit KC5307) Update July 2003 by Peter Smith A GPS Module For Your PC April 2001 (RCS PJGPS2K1) (Peter Johnson) PC Games Port Tester (Trent Jackson) June 2001 A PC To Die For Pt 1 June 2001 Build It Yourself Pt 2 July 2001 (Greg Swain) Pt 3 August 2001 Build Your Own MP3 Jukebox Pt 1 September 2001 (07109011) (Peter Smith) (Altronics kit) Pt 2 October 2001 (See FAQs January, April 2002) (Notes & Errata: December 2002) PC-Controlled Mains Switch (10109011) September 2001 (Trent Jackson/Ross Tester) (Altronics kit) (Errata: April 2002, April 2006) Building Your Own PC - One Man's Approach October 2001 (Feature) In-System Programming Adapter For Atmel October 2001 AVR Microcontrollers (07110011) (Peter Smith) (Errata: December 2001, October 2002) PC Infrared Transceiver (07112011) (Peter Smith) December 2001 (Altronics K2740, DSE K3608, Jaycar KC5323) (TDFS4500 from Farnell cat 315-2686) PIC Fun And Games (Ross Tester) December 2001 (eLabtronics kit also available from Altronics) PICFun eTimer 4-Way Event/Race/Anything Timer February 2002 (Ross Tester) (eLabtronics kit) Digital Storage Logic Probe For Windows 98 August 2002 (04308021) (Trent Jackson/Ross Tester) (Errata: October 2002) Sound Card Interface For PC Test Instruments August 2002 Including Oscilloscope (04108021) (Peter Smith) (See Circuit Notebook May 2003 for modification) PC Parallel Port Wizard October 2002 (07210021) (Trent Jackson) AVR ISP Serial Programmer (07110021) October 2002 (Stephen Davies/Peter Smith) (Jaycar KC5340) (Errata: April 2003) Windows-Based EPROM Programmer Pt 1 November 2002 (07112021) Pt 2 December 2002 (Jim Rowe) (DSE kit K3605) Pt 3 February 2003 Upgraded Software, see June 2004 Phoenix Type Smart Card Reader/Programmer January 2003 (07201031) (David Freeman) (Jaycar kit KC5342) See Notes February 2003 (Page 92) For PIC Programmer Interface (Errata: March 2003) Ref Project March 2001 (Jaycar kit KC5307) See July 2003 for MkII PICAXE: Introduction & Simple LED Flasher February 2003 (Stan Swan) (http://picaxe.orcon.net.nz) PICAXE: Shop Door Minder March 2003 PICAXE: Heartbeat Simulator April 2003 (Australian distributors: MicroZed & Oatley Elec) 3 DIY PIC Programmers (Jim Rowe) April 2003 (Ozitronics/DIY Electronics kits K81, K149, K160) www.ozitronics.com Building A Quiet PC (Peter Humphreys) April 2003 PICAXE: Motor Controller May 2003 (Australian distributors: MicroZed & Oatley Elec) Printer Port Tester (Hardware Simulator) May 2003 (07105031) (PCB# amended in notes/errata June 2003) (Jim Rowe) (DSE kit #K3609) PICAXE: Chookhouse Door Controller June 2003 (Stan Swan) PICAXE-Controlled Telephone Intercom June 2003 (David Lincoln) PICAXE-08 Port Expansion (David Lincoln) June 2003 PICAXE: Data Communications (Stan Swan) July 2003 Full Function Smart Card Reader/Programmer July 2003 (07107031) (Peter Smith) (Jaycar KC5361 Exclusive) (Errata: September 2006) Updating The PIC Programmer & Checkerboard July 2003 (Peter Smith) Refer project March 2001 PC Infrared Remote Receiver August 2003 (07108031) (Peter Smith) (Errata: Sep, Nov 2003) (Altronics K2755, Jaycar KC5366) PICAXE: Fat Cat Clever Code (Stan Swan) August 2003 Portable Serial PIC Programmer (07109031) September 2003 (Peter Smith) (Errata: July 2005, February 2006) (Altronics K9505, DSE K3610, Jaycar KC5367) PICAXE: A Datalogger & A Napping LEDs Circuit September 2003 (Stan Swan) PICAXE: 18X Series & 18A Temperature Sensor November 2003 (Stan Swan) PICAXE: Keyboards 101 (Stan Swan) December 2003 PICAXE-18X 4-Channel Datalogger (Clive Seager) Pt 1: Basic Module January 2004 Pt 2: Real Time Clock February 2004 Pt 3: Humidity Sensor, More Memory & An LCD March 2004 (Errata: August 2004) PC Power Rail Monitor February 2004 (07102041) (Jim Rowe) (Altronics K2895) PC Or PICAXE Interface For UHF Remote Control April 2004 (John Holliday) (Refer Project June 2003) UHF Wireless Parallel Port May 2004 (07105041) (Nenad Stojadinovic - kits/parts available - email vladimir@u030.aone.net.au) Automating PC Power-Up (Peter Smith) June 2004 Upgraded Software For The Windows-Based Eprom June 2004 Programmer (refer November 2002-February 2003) (Jim Rowe) PICAXE: Programmable Robot September 2004 (07209041) (Thomas Scarborough) (Errata: Nov 2004) PICAXE-08M Kit: Rudolph The Red-Nosed Reindeer September 2004 (Clive Seager picaxe.co.uk) microzed.com.au USB Power Injector (07110041) October 2004 (Jim Rowe) (Altronics K2910, Jaycar KC5399) USB-Controlled Power Switch November 2004 (10111041) (Jim Rowe) (Jaycar KC5401) (Errata: December 2004) PICAXE (Rudolph) Infrared Remote Control November 2004 (Clive Seager picaxe.co.uk) microzed.com.au Solar-Powered PICAXE Wireless Weather Station December 2004 (07112041) (Nenad Stojadinovic) Picaxus Interruptus December 2004 (Stan Swan) Simon Says (PICAXE Project) January 2005 (Clive Seager picaxe.co.uk) microzed.com.au USB Electrocardiograph February 2005 (07102051) (Jim Rowe) (DSE K3704) A Cheap UV EPROM Eraser (Barry Hubble) March 2005 PICAXE Data Over 477MHz UHF CB (Stan Swan) March 2005 PICAXE In Schools (Clive Seager) Pt 1: Assembling Your Schools Experimenter Board May 2005 Pt 2: Responding To Input Signals June 2005 Pt 3: Making Sounds & Measuring Temperature July 2005 Pt 4: Making Things Move September 2005 Pt 5: Adding IR RC & Voice Recording November 2005 PICAXE Colour Recognition System (Clive Seager) June 2005 AVR200 Single Board Computer Pt 1 June 2005 (Ed Schoell) (Kit from www.jedmicro.com.au) Pt 2 July 2005 Serial Stepper Motor Controller July 2005 (Greg Radion) (Kit from www.oceancontrols.com.au) Serial LCD Driver August 2005 (Graeme Matthewson/Ross Tester) (Oatley K221) (Errata: September 2005) Dead Simple USB Breakout "Box" October 2005 (Stan Swan) PICAXE iButton Reader October 2005 (AXE109) (Clive Seager) (Errata: December 2005) Serial I/O Controller & Analog Sampler November 2005 (07111051) (Trent Jackson) (Errata: December 2005, January 2006) (DSE K3090) 433MHz Wireless Data Communication December 2005 (Stan Swan) PIC In-Circuit Programming Add-On December 2005 (Keith Anderson) AVR ISP SocketBoard March 2006 (07103061) (Peter Smith) (Jaycar KC5421) (Refer projects October 2001 and October 2002) PICAXE Goes Wireless Pt 1 April 2006 (AXE210) (Clive Seager) Pt 2 May 2006 Multi-Throttle Controller For PC Flight Sims August 2006 (Robert Gott) PICAXE Net Server Pt 1 September 2006 (Clive Seager) Pt 2 October 2006 (Starter packs from microzed.com.au) Pt 3 November 2006 . Pt 4 December 2006 Dual Core PICAXE Infrared Data Communication April 2007 (Stan Swan) Playback Adapter For CD-ROM Drives Pt 1 November 2007 (07112071) (Mauro Grassi) Pt 2 December 2007 (Errata: December 2007) (Jaycar KC5459) (See also Circuit Notebook, July 2008) Low-Cost Programmer For dsPICs & PICs May 2008 (07105081) (Mauro Grassi) (Jaycar KC5467) (Errata: June 2008) USB Power Injector For External Hard Drives June 2008 (07110041) (Greg Swain) (Errata: July 2008) Manual 2-Way USB Device Switch April 2009 (07104091) (Jim Rowe/Greg Swain) 6-Digit GPS Clock (04105091) (Jim Rowe) Pt 1 May 2009 GPS Clock Driver (07106091) Pt 2 June 2009 (EM-408 GPS engine module from Altronics, PCBs and pre-programmed PIC from RCS Radio) GAMES (08) Plasma Display EHT Generator August 1988 (SC0820888) (Leo Simpson) Electronic Fish Bite Detector September 1988 (OE42F) (Branko Justic) (Errata: February 1989) Vader Voice (SC08108881) (Darth Junior) September 1988 (DSE kit) Poor Man's Plasma Display November 1988 (SC11111881) (Leo Simpson) (Errata: January 1989) Knightrider LED Scanner November 1988 (SC08111881) (Circuit Notebook) (Jaycar kit) Map Reader For Trip Calculations March 1989 (SC08103891) (Malcolm Young/Leo Simpson) Syntom - A Synthesised Tom-Tom (Leo Simpson) May 1989 Pools/Lotto Selector (SC08105891-2) May 1989 (Malcolm Young) (Errata: June 1989) Garbage Reminder (SC08108891) August 1989 (John Clarke) (Errata: October 1989) Hot Canaries (SC08112891) (John Clarke) February 1990 Workout Timer For Aerobics Classes March 1990 (SC08102901) (Steve Calder) Build This Elegant Electronic Die July 1990 (SC08107901) (Darren Yates) (DSE kit) Horace The Electronic Cricket August 1990 (SC08106901) (John Clarke) (Jaycar kit) SurfSound Simulator (SC08109901) (Darren Yates) October 1990 Ticking Egg Timer (SC08110901) (Darren Yates) November 1990 The Big Escape (SC08112901) (Darren Yates) December 1990 The Fruit Machine (SC08101911) (Bruce Baguley) January 1991 2-Tone Alarm Module (SC08111901) (Darren Yates) January 1991 (Jaycar kit) Simple 12/24V Light Chaser (SC08106911) April 1991 (Darren Yates) (Jaycar kit) Executive Thingie (SC08103921) (Darren Yates) April 1992 Number Cruncher (SC08110921) December 1992 (Greig Sheridan/Darren Yates) Electronic Cockroach (08310921) (John Clarke) February 1993 Reaction Trainer (08312921) (John Clarke) March 1993 Low-Cost Quiz Game Adjudicator (08106931) July 1993 (Darren Yates) (see Ask SC Aug 93) Remote-Controlled Electronic Cockroach September 1993 (08307931) (John Clarke) Siren Sound Generator November 1993 (Bernie Gilchrist) (DSE K5514) 1-Chip Melody Generator December 1993 (Bernie Gilchrist) (DSE kit) Novel LED Torch (08302941) (John Clarke) February 1994 Simple LED Chaser (08103941) March 1994 (Darren Yates) (Altronics, DSE, Jaycar kits) Dual Electronic Dice (08105941) May 1994 (Darren Yates) (DSE kit) Clifford The Electronic Cricket December 1994 (08112941) (Darren Yates) (Errata: July 2005) (DSE K3533, Jaycar KC5178) Lightning Distance Meter March 1995 (08103951) (Darren Yates) Vader Voice (08310951) (John Clarke) September 1995 (DSE K3511, Jaycar kit) Magnetic Card Reader & Display January 1996 (Mike Zenere - own kit) KnightRider LED Scanner May 1996 (08105961) (Rick Walters) (DSE K3168, Jaycar KC5204) Laser Pistol & Electronic Target December 1996 (08112961 & 08112962) (Rick Walters) The Spacewriter Message Wand May 1997 (08305971) (John Clarke) (Jaycar kit) Plasma Display/Jacob's Ladder September 1998 (Branko Justic) (Oatley K120 discontinued) The Christmas Star (08211981) (Les Grant) November 1998 (Jaycar KC5253) Build Your Own Poker Machine Pt 1 November 1998 (SC08112981) (Andersson Nguyen) Pt 2 December 1998 LEDS Have Fun! February 1999 (Leo Simpson) (DSE kit) (Errata: April 1999) The Line Dancer Robot (11385991) May 1999 (Andersson Nguyen) (Jaycar kit) (Errata: August, September 1999) Heart Of LEDs (08205991) (Les Grant) May 1999 (Jaycar kit) The Hexapod Robot (Ross Tester) (RobotOz kit) July 1999 Autonomouse The Robot Pt 1 September 1999 (08409991-2-3) (John Clarke) Pt 2 October 1999 (Errata: October 1999) Multi-Colour LED Christmas Tree (Les Grant) November 1999 (Jaycar KC5280) (Errata: December 1999) PICMAN 2000: A Programmable Robot January 2000 (11101001) (Andersson Nguyen) (Altronics kit) LED Dice (08105001) (Doug Jackson) May 2000 (Errata: July 2000) Come In Spinner: SpinStick Message Wand August 2000 (Attilla Aknar) (kit no longer available) Cybug - The Solar Fly (Ross Tester) (DSE) September 2000 Protoboards: The Easy Way Into Electronics (Leo Simpson) Pt 1: Build A Light Chaser September 2000 Pt 2: Build A Siren & Alarm Timer October 2000 Pt 3: More Circuits Based On The 555 Timer November 2000 Pt 4: Fun With Comparators December 2000 Pt 5: More Fun With Comparators March 2001 Sun-Seeking Sunflower (Cybug Power Plant) March 2001 (Craig Maynard/Ross Tester) (DSE K3563) PC Games Port Tester (Trent Jackson) June 2001 PIC Fun And Games (Ross Tester) December 2001 (eLabtronics kit also available from Altronics) PICFun eTimer 4-Way Event/Race/Anything Timer February 2002 (Ross Tester) (eLabtronics kit) 32-LED Knightrider (08105021) (John Clarke) May 2002 (Altronics K5815) Decision Maker December 2002 (08112021) (Trent Jackson/Ross Tester) Jazzy Heart Electronic Jewellery August 2003 (08108031) (Thomas Scarborough) Human-Powered LED Torches February 2004 (Julian Edgar) Escape Robot Kit (Altronics K1103) August 2004 (reviewed by Dave Kennedy) PICAXE-08M: Rudolph The Red-Nosed Reindeer September 2004 (Clive Seager picaxe.co.uk) microzed.com.au Sports Scoreboard Pt 1 March 2005 (Jim Rowe) Pt 2 April 2005 (Jaycar exclusive KC5408) Pt 3 May 2005 Swimming Pool Lap Counter March 2005 (08103051) (Rick Walters) (Errata: April 2005) Introducing Microbric: Programmable Robotics November 2005 The Microbric Viper Robot (DSE K1800) December 2005 Salvage It! Human-Powered LED Torch January 2006 (Julian Edgar) Adding Infrared To Your Microbric Viper February 2006 (Ross Tester) A Line Tracker For Your Microbric Viper March 2006 (Ross Tester) Microbric Viper: The Sumo Module April 2006 (Ross Tester) Multi-Throttle Controller For PC Flight Sims August 2006 (Robert Gott) Galactic Voice September 2006 (08109061-2) (John Clarke) (Jaycar KC5431) (Errata: October 2006) Programmable Christmas Star November 2006 (David Meiklejohn) (www.gooligum.com.au) Fun With The New PICAXE 14-M: LED Chaser June 2007 (Stan Swan) OSCAR: Electronics Noughts & Crosses Game October 2007 (08110071) (Brian Healy) (No kit - PCB from RCS Radio) MODEL RAILWAYS, RADIO CONTROL (09) (14MRP = "14 Model Railways Projects" Book) RailPower Walkaround Throttle For Model Railroads 14MRP (SC91488) (Leo Simpson/John Clarke) Pt 1 April 1988 (See Ask SC June 1988, May 1995 and Pt 2 May 1988 Errata Aug 1995) Diesel Sound Generator December 1988 (SC09109882) (Greg Swain/John Clarke) 14MRP LED Flasher For Model Railways February 1989 (SC09102891) (Malcolm Young) 14MRP Low-Cost Model Train Controller November 1990 (Greg Swain) SteamSound Simulator April 1991 (SC09104911) (Darren Yates) Fluorescent Light Simulator For Model Railways May 1991 (Darren Yates) 14MRP SteamSound Simulator Mk II October 1991 (SC09110911) (Darren Yates/Leo Simpson) 14MRP (Jaycar kit) Infrared Remote Control For Model Pt 1 April 1992 Railroads (SC91488/SC15204921-2) Pt 2 May 1992 (Leo Simpson/John Clarke) Pt 3 June 1992 (Ref SC April 1996: Replacement Module For 14MRP The SL486 & MV601 Remote Control Receiver ICs) Track Tester For Model Railroad Layouts September 1992 (SC09308921) (Leo Simpson/John Clarke) 14MRP Diesel Sound Simulator For Model Railroads December 1992 (SC09111921) (Darren Yates) (DSE, Jaycar kits) 14MRP 3 Simple Projects For Model Railroads February 1993 (Terry Mowles) Train Controller 14MRP (Ref April 1997 For Updated Version) Traffic Light Simulator (Errata: May 1993) (Ref May 1997 For Updated Version) And Points Controller Single Chip Sound/Message Recorder July 1993 (01104931) (Darren Yates) 14MRP (See Circuit Notebook Sept 97 For Modification) (ISD distributor: Adilam Electronics 03 9761 4466) Simple Low-Voltage Speed Controller January 1994 (09111931) (Darren Yates) (DSE K3070) Level Crossing Detector For Model Railways March 1994 (15203931) (John Clarke) (DSE, Jaycar kits) 14MRP Sound & Lights For Level Crossings April 1994 (15203932) (John Clarke) (DSE, Jaycar kits) 14MRP Two Simple Drivers For Radio Control Servos May 1994 (09105941-2) (Nenad Stojadinovic) (Altronics kit) Steam Train Whistle & Diesel Horn Simulator July 1994 (09305941) (John Clarke) (Altronics, DSE, Jaycar kits) Simple Timer Circuit For The Steam Train Whistle July 1994 (05207941) (John Clarke) Building A Radio Control System For Models Pt 1 December 1994 (Bob Young) Building A Radio Control System For Models Pt 2 February 1995 (Bob Young) Pt 3 March 1995 An 8-Channel Decoder For Radio Control April 1995 (Bob Young) A 16-Channel Decoder for Radio Remote Control May 1995 (Bob Young) A Train Detector For Model Railways June 1995 (09306951-3) (John Clarke) (Jaycar kit) (See Notes On Page 62 September 1995) Multi-Channel Radio Control Transmitter Pt 1 June 1995 For Models (Bob Young) (Ref: March-October 1996 for Parts 2-8) Run Two Trains On A Single Track July 1995 (With Level Crossing Lights & Sound Effects) (Leo Simpson/Branko Justic) (Oatley Electronics kit) Railpower MkII: A Walk-Around Throttle Pt 1 September 1995 For Model Railways (09109951-2) Pt 2 October 1995 (Rick Walters) (Jaycar kit) (Errata: Dec 95) IR Remote Control For The Railpower MkII January 1996 (09101961) (Rick Walters) Replacement Module For The SL486 & MV601 Remote April 1996 Control Receiver ICs (09103961) (Rick Walters) (Ref: IR RC For Model Railroads, SC April-May 92; Remote Volume Control For HiFi, SC May-June 93; Stereo Preamplifier With IR RC, SC Sept-Nov 93) Mk.22 Multi-Channel Radio Control Transmitter For Models (Bob Young) Part 1: Introduction June 1995 Part 2: Encoder Module (Errata: April 1996) March 1996 Part 3: AM Transmitter Circuit April 1996 Part 4: Transmitter PC Board May 1996 Part 5: Transmitter Encoder PC Board June 1996 Part 6: Case Assembly/Sub-Assembly Interwiring July 1996 Part 7: Programming The Transmitter August 1996 Part 8: Advanced Programming October 1996 A Fast Clock For Railway Modellers December 1996 (09112961) (Leo Simpson) (See Ask SC May 1997 For Master/Slave Modification) Two Projects For Model Railways March 1997 3-Aspect Signalling/Constant Brilliance Lighting (Jeff Monegal) (Kits no longer available - PCBs available from RCS Radio) Train Controller For Model Railway Layouts April 1997 (09104971) (Rick Walters) (DSE kit) (Errata: August 1999) Traffic Lights For A Model Layout May 1997 (09205971) (Rick Walters) (DSE kit) Manual Control Circuit For A Stepper Motor June 1997 (09106971) (Rick Walters) (DSE, Jaycar kits) A Fail-Safe Module For The Throttle Servo June 1997 (Bob Young) (Silvertone Electronics kit) InfraRed Remote Volume Control (1 to 8 Channels) July 1997 (Leo Simpson) (Oatley Electronics kit) Points Controller For Model Railways July 1997 (Rick Walters) (09107971) (Jaycar kit) An In-Line Mixer For Radio Control Receivers July 1997 (Bob Young) (Errata October 1998) (Silvertone Electronics kit) Run Your Model Railway With Pt 1 January 1998 Command Control Pt 2 February 1998 (09102981) (09103981) (Barry Grieger) Pt 3 March 1998 (Errata: March & June 1999) Pt 4 May 1998 (Jaycar kit) Pt 5 June 1998 A Mixer Module For F3B Glider Operations Pt 1 November 1998 (Bob Young)(Silvertone Electronics kit) Pt 2 December 1998 Command Control Decoder For Model Railways February 1999 (09102991-2) (Cam Fletcher) The Railpower Model Train Controller Pt 1 October 1999 (09310991) Pt 2 November 1999 (John Clarke) Pt 3 December 1999 Glowplug Driver For Model Aircraft, Boats, Cars March 2000 (Ross Tester) (Oatley Electronics kit) 50 Amp Motor Speed Controller For Models - May 2000 With Brake (Ross Tester) (Oatley Electronics kit) L'il Pulser Train Controller (09102011) February 2001 (John Clarke/Leo Simpson) (DSE kit, Jaycar KC5304) Jumbo Servo (Ross Tester)(Oatley Electronics kit) May 2001 DIY Remote Control For A Model Train Layout July 2004 (PICAxe Project) (Greg Hunter) 12V-24V High-Current Motor Speed Controller Pt 1 March 2008 (09103081-2) (Mauro Grassi) Pt 2 April 2008 (Altronics K6005, Jaycar KC5465) (Errata: April, May, July 2008) Railpower IV Model Train Controller Pt 1 September 2008 (09109081-2) (John Clarke) Pt 2 October 2008 (Altronics K6015) 12V Speed Controller or 12V Lamp Dimmer November 2008 (05111081) (Leo Simpson) MAINS POWER CONTROL (10) Speedi-Watt Power Controller (Universal Dimmer) December 1987 (SC1011287) (Leo Simpson) (Modification for fluorescent lights, see Ask SC March 1988) Party (Flash) Light (Stephen David) May 1988 DiscoLight (SC1010688) Pt 1 July 1988 (John Clarke & Leo Simpson) Pt 2 August 1988 (Altronics, DSE, Jaycar kits) (Modification for use with neon lighting, see Ask SC October 1995) Line Filter For Your Computer (Mains Muzzler) January 1989 (SC10101891) (Leo Simpson) Universal Temperature Controller June 1989 (Branko Justic/Jeff Monegal) (Oatley Electronics kit) Touch Lamp Dimmer (SC11106891) (Leo Simpson) June 1989 (Errata: October 1989) Extension For Touch Lamp Dimmer July 1989 (SC10107892) (Leo Simpson) (Errata: Sept 1989) Speed Controller For Ceiling Fans (John Clarke) January 1990 Load Protector For Power Supplies June 1990 (SC04204901) (John Clarke/Leo Simpson) Universal Safety Timer For Appliances August 1990 (SC1010790) (John Clarke) Alarm Power Supply With Battery Back-Up September 1990 (Greg Swain) (DSE kit) Add Dimming Controls To The DiscoLight October 1990 (SC10111902) (John Clarke) Four Channel Lighting Desk/Dimmer Pt 1 June 1991 (SC10106911/2) (John Clarke/Leo Simpson) Pt 2 July 1991 (DSE kit) 8-Station Automatic Sprinkler Controller July 1992 (SPV3) (Graham Blowes) (Mantis Micro kit) Heavy-Duty 5A Drill Speed Controller September 1992 (SC10109921) (Leo Simpson) (Altronics, DSE, Jaycar kits) (Modifications: November 1992) High Power Dimmer For Incandescent Lamps August 1994 (10107941) (Marque Crozman) Photographic Timer For Darkrooms April 1995 (10304951) (John Clarke) (Errata: November 1996) (See Circuit Notebook, Dec 96, For 1/4 Stops) (DSE, Jaycar kits) The Rain Brain Automatic Sprinkler Controller January 1996 (Graham Blowes) (Mantis Micro kit) Electronic Starter For Fluorescent Lamps August 1996 (10308961) (John Clarke) (DSE kit) (Errata: October 1996) Power Control With A Light Dimmer October 1996 (Leo Simpson) How To Repair Domestic Light Dimmers November 1996 (Leo Simpson) Heavy Duty 10A 240VAC Motor Speed Controller November 1997 (10311971) (John Clarke) (DSE K3087, Jaycar kits) (Errata: January 1998) A Regulated Supply For Darkroom Lamps November 1997 (10107971) (Rick Walters) Power Supply For Stepper Motor Cards December 1997 (10112971) (Rick Walters) (Jaycar kit) (Refer Projects July-September & December 1997) Universal Stepper Motor Controller June 1998 (10106981) (Rick Walters) (Jaycar kit) Heat Controller (10307981) (John Clarke) July 1998 (see Circuit Notebook August 2001 for Thermistor addition) A Regulated 12V DC Plugpack (Ross Tester) December 1998 Use Your Old PC Power Supply For High December 1998 Current Outputs (Leo Simpson) (Errata: Jan 1999) Multi-Sector Sprinkler Controller February 2000 (Ned Stojadinovic) (Kit from Author) Hot Wire Cutter (Leo Simpson) April 2000 (Refer Glowplug Driver, March 2000) How To Run A 3-Phase Induction Motor From 240VAC April 2000 (Peter Laughton) Proximity Switch For 240VAC Mains Lights August 2000 (Leo Simpson/Allan Bonnard) (Futurlec kit) PC-Controlled Mains Switch (10109011) September 2001 (Trent Jackson/Ross Tester) (Altronics kit) (Errata: April 2002, April 2006) Touch And/Or Remote Controlled Light Dimmer Pt 1 January 2002 (10101021) (John Clarke) (Errata: Aug 2002) Pt 2 February 2002 (Altronics K6030, Jaycar KC5324) Automatic Single Channel Light Dimmer Pt 1 April 2002 (10104021-2-3) (John Clarke) Pt 2 May 2002 (PIC programmed by and PCBs from RCS Radio) Stepper Motor Controller (Ross Tester) May 2002 (Oatley Electronics kit) (Errata: June 2002) (see June 2002 for Constant High-Current Source to suit) Improved 240V 5A Motor Speed Controller for October 2002 Universal Motors (10110021) (John Clarke) (Errata: Nov/Dec 2002, January 2003, May 2003) (Jaycar KC5339) 240V Mains Filter For Hi-Fi Systems (Ross Tester) February 2003 (Soundlabs kit www.soundlabsgroup.com.au) Sunset Switch June 2003 (10106031) (John Clarke) (Errata July 2003) (Altronics K6025, Jaycar KC5359) PowerUp: Turns Peripherals On Automatically July 2003 (10107031) (John Clarke) (Altronics K6046, Jaycar KC5363) USB-Controlled Power Switch November 2004 (10111041) (Jim Rowe) (Jaycar KC5401) Bidirectional Motor Speed Controller December 2004 (Frank Crivelli) (Ozitronics K166) (Errata: July 2005) Salvage It! A $5 Variable Voltage Power Supply April 2005 (Julian Edgar) Coolmaster/Tempmaster June 2005 Fridge/Freezer Temperature Controller (10106051) (Jim Rowe) (Jaycar KC5413) (Errata: September 2005) Remote Controlled Automatic Table Lamp Dimmer July 2005 (10107051) (John Clarke) (DSE K3040) (Errata: September 2005) Ceiling Fan Timer (10110051) (John Clarke) October 2005 Salvage It! Getting The Good Bits From Cordless April 2006 Drills - And Putting Them To Work (Julian Edgar) Remote Mains Relay (ZA0017) (Bill De Rose) May 2006 (DSE K3041 exclusive - no longer available) (See Remote Mains Relay Mk2, January 2009) PC-Controlled Mains Switch MkII July 2006 (10107061-2) (Trent Jackson) Tingle Terminator: July 2006 Stop Zaps From Double-Insulated Equipment (John Clarke) High-Power Reversible DC Motor Speed Controller April 2007 (Leo Simpson/Branko Justic) (Oatley K243) Throttle Interface For The DC Motor Speed May 2007 Controller (April 2007) (Oatley K244) Adjustable 1.3-22V Regulated Power Supply May 2007 (10105071) (John Clarke) (Jaycar KC5446) A UV Light Box For Making PC Boards November 2007 (10111071-2) (Robert Scott) (Errata: December 2007, August 2008) Emergency 12V Lighting Controller January 2008 (EC8274) (Jim Rowe) (Jaycar KC5456) UHF Remote Mains Switch February 2008 (10102081) (John Clarke) (Jaycar KC5462) UHF Remote Mains Switch Transmitter February 2008 (10202081) (John Clarke) (Errata: March 2008) (Jaycar KC5462) PIR-Triggered Mains Switch (EC8273) February 2008 (Jim Rowe) (Jaycar KC5455) (Errata: March 2008) DSP Musicolour Lightshow Pt 1 June 2008 (10107081-2) (Mauro Grassi) Errata & Pt 2 July 2008 (Altronics K5803) Pt 3 August 2008 Remote Control (10107083) Errata & Pt 4 September 2008 Musicolour IrDA Accessory November 2008 (10111081) (Mauro Grassi) Brownout Protector December 2008 (10112081) (John Clarke) (Errata: January 2009) USB-Sensing Mains Power Switch January 2009 (10101091) (Jim Rowe/Mauro Grassi) (Altronics K2920) Remote Mains Relay Mk2 January 2009 (Jim Rowe) (Supersedes May 2006 Project) Tempmaster Mk2 February 2009 (10202091) (Jim Rowe) (Jaycar KC5476) 10A Universal Motor Speed Controller Mk2 February 2009 (10102091) (John Clarke) (Errata: March 2009) (Altronics K?TBA, Jaycar KC5477) Multi-Function Remote-Controlled Lamp Dimmer April 2009 (10104091) (Mauro Grassi) (Errata: May 2009) 230V 10A Full-Wave Motor Speed Controller May 2009 (10105091) (John Clarke) (Jaycar KC5478) (Errata: June 2009) BATTERY POWER (Inverters, Fences) (11) 24V To 12V Converter For Trucks (SC1111287) December 1987 (John Clarke) (Errata: March, August 1988) Poor Man's Plasma Display (SC1111188) November 1988 (Leo Simpson) (Errata: January 1989) Touch Lamp Dimmer (SC1110689) June 1989 (Leo Simpson) (Errata: October 1989) Intelligent Charger For 12V Gel Batteries July 1989 (SC11107891) (Garry Cratt) (Amateur Radio) (Altronics kit) 12V Alarm Power Supply With Battery Back-Up September 1990 (Greg Swain) (DSE kit) Build This 1.5V To 9V DC Converter November 1990 (SC11111901) (Darren Yates) Three Inverters For Fluorescent Lights February 1991 (SC11103901) (Otto Priboj) (Jaycar kit) Battery Discharge Pacer For Electric Vehicles July 1991 (SC11108911) (Dieter Kuenne) 12VDC/240VAC 40W Inverter (SC11203921) February 1992 (John Clarke) (Errata: July, Oct 92) (Altronics kit) 15W 12-240V Inverter June 1992 (SC11106921) (John Clarke/Darren Yates) Miniature 1.5V To 9V DC Converter (SC11111921) August 1992 (Darren Yates) (DSE kit) 2kW 24V/240VAC Sinewave Inverter Pt 1 October 1992 (SC11309921-4) Pt 2 November 1992 (John Clarke) Pt 3 December 1992 (Project now obsolete) Pt 4 January 1993 (Transformer bobbins no longer available) Pt 5 February 1993 High Intensity LED Flasher For Bicycles January 1993 (SC11112921) (Darren Yates) (Errata: March 1993) Solar-Powered Electric Fence (Branko Justic) April 1993 (Errata: January 1994) (Oatley Electronics kit) 12VDC To 70VDC Step-Up Voltage Converter April 1993 (11102931) (Darren Yates) Low-cost Mini Gas Laser (11104931) May 1993 (Flavio Spedalieri)(Oatley Electronics kit) +5V To +/-12V DC Converter September 1993 (11109931) (Darren Yates) (DSE kit) High Efficiency Inverter For Fluorescent Tubes November 1993 (11312931) (John Clarke) (Altronics kit) Compact & Efficient 12-240VAC 200W Inverter February 1994 (11309931) (John Clarke) (Errata: July, Oct 1994) Fast Charger For Nicad Batteries (11102941) May 1994 (Darren Yates) (Errata: July, Sept 1994) (Altronics, DSE, Jaycar kits) Portable 6V SLA Battery Charger July 1994 (Brian Dove) (Jaycar kit) Nicad Zapper (11106941) (Darren Yates) August 1994 (Jaycar kits) (Errata: April 1998) (see also Circuit Notebook, June 1995) Electronic Ballast For Fluorescent Lights October 1994 (11309941) (John Clarke) Simple Battery Saver Circuit For Torches January 1995 (11101951) (Marque Crozman) Low-Cost Electric Fence Controller July 1995 (11306951) (John Clarke) (DSE, Jaycar kits) (Errata: December 1995, December 1998) Jacob's Ladder (11306951) (John Clarke) September 1995 (Jaycar KC5191) Low-Cost Fluorescent Light Inverter November 1996 (Branko Justic) (Oatley Electronics kit) High-Current Motor Speed Control For 12V & 24V June 1997 Systems (11106971) (Rick Walters) (Errata: August 1997, October 1998) (DSE, Jaycar KC5225) Flickering Flame (For Stage Work) October 1997 (11410971) (Ross Tester) (Jaycar KC5234) Musical Doorbell Chime November 1997 (11211971) (Bob Flynn) (Altronics, DSE K3803) 12V CFL (Compact Fluorescent Lamp) Inverter March 1998 (Branko Justic) (Oatley kit) (Errata: Aug 1998) Capacity Indicator For Rechargeable Batteries September 1998 (11106961) (Rick Walters) (MAX472 available from Semtronics, Melbourne) New High Power Electric Fence Controller April 1999 (11303991) (John Clarke) (Errata: May 1999) (Altronics, DSE kits) Three (3) Electric Fence Testers May 1999 (11303992-4) (John Clarke) (DSE, Jaycar kits) The Line Dancer Robot (11385991) May 1999 (Andersson Nguyen) (Jaycar kit) (Errata: August, September 1999) Peltier-Powered Can Cooler (Ross Tester) September 1999 Backup Battery For Cordless Phones October 1999 (12510991) (Leo Simpson) (Jaycar kit) PICMAN 2000: A Programmable Robot January 2000 (11101001) (Andersson Nguyen) (Altronics kit) CFL (Compact Fluorescent Lamp) Driver July 2000 (11107001) (John Clarke) (Jaycar kit) Build A LED Torch (11112001) (John Clarke) December 2000 (DSE K3018) (See Circuit Notebook January 2002, May 2002 and October 2002) Two White LED Torches To Build May 2001 (11105011 & 11205011) (John Clarke) (Errata: June 2001) (DSE kit for 6 LED version) PowerPack: A Multi-Voltage Supply For Cars May 2001 (11305011) (Peter Smith) (Errata: June 2001) (Altronics kit) 12V 40W Fluorescent Light Inverter (11109021) September 2002 (John Clarke) (DSE K3131) (Jaycar KC5338) (Errata: December 2002, January 2003) Icy Esky: Peltier-Effect Tinnie Cooler March 2003 (Ross Tester) (Parts from Oatley Electronics) Adjustable DC-DC Converter For Cars June 2003 (11106031) (John Clarke) (Altronics K6320, Jaycar KC5358) 1W Star 2-Cell LED Torch November 2003 (11211031) (John Clarke) (Errata: January 2004) Linear Supply For Luxeon 1W Star LEDs December 2003 (11112031-2) (Peter Smith) High Efficiency Power Supply For 1W Luxeon Star January 2004 LEDs (11101041) (Peter Smith) (Altronics K1000) (Errata: February 2004) 3V To 9V DC-DC Converter March 2004 (11103041) (Peter Smith) (Errata: September 2004) (Altronics K6330, Jaycar KC5391) (See Circuit Notebook August 2005 to power USB) White LED Driver March 2004 (Oatley K202 & K202A) (Errata: October 2004) StarPower: High-Efficiency Supply For May 2004 Luxeon Star LEDs (11105041) (Errata: Sept 2006) (Peter Smith) (Altronics K1010, Jaycar KC5389) MicroPower Battery Protector July 2004 (11107041) (Peter Smith) (DSE K3132) (Errata: September 2004) CFL (Compact Fluorescent Light) Inverter/ September 2004 12V DC-DC Converter (Errata: October 2004) (Branko Justic) (Oatley Electronics K111A) Build Yourself A Windmill Generator Pt 1 December 2004 (Glenn Littleford) Pt 2 January 2005 . Pt 3 February 2005 . Pt 4 March 2005 Pocket TENS Unit January 2006 (11101061) (John Clarke) (DSE K3705) Universal High Energy LED Lighting System April 2006 (11004061) (John Clarke/Julian Edgar) 12/24V Auxiliary Battery Controller For Vehicles December 2006 (Branko Justic/Ross Tester) (Oatley Kit K227) Jacob's Ladder April 2007 (11104071) (Leo Simpson) (Jaycar KC5445) (Errata: June 2007) High Current Adjustable Voltage Regulator May 2008 (11105081) (Jim Rowe) (Jaycar KC5463) LED/Lamp Flasher (LM3909 Replacement Module) September 2008 (11009081) (Thomas Scarborough) NOTE: Inverters: Search also For CONVERTER TELEPHONES/FACSIMILE (12) Off Hook Indicator For Telephones November 1987 (SC1211187) (John Clarke) Personal Phone Ringer - Update The Sound Of January 1988 Your Phone (SC1211287) (John Clarke) Line Grabber For Telephones March 1988 (SC121488) (Greg Swain) Hands-Free Speakerphone (SC1210988) September 1988 (John Clarke) (Errata: November 1988, March 1989) (see Ask SC Dec 88 for 50V source for testing) Add A Headset To The Speakerphone November 1988 (SC1210988) (Greg Swain) Telephone Bell Monitor/Transmitter April 1989 (SC0120489-) (Greg Swain) Phone Patch For Radio Amateurs Pt 1 January 1990 (SC1211289) (John Clarke/Greg Swain) Pt 2 February 1990 (Errata: August 1990) Music On Hold For Your Telephone September 1990 (Jeff Monegal/Branko Justic) (Oatley Electronics kit) DTMF Decoder (SC12106911) May 1991 (Darren Yates/Greig Sheridan) Fax/Modem For Your Computer September 1991 (Leo Simpson) (PC Marketplace kit) Telephone Call Timer (SC12104921) (Darren Yates) March 1992 Telephone Intercom (SC12105921-2) May 1992 (Greig Sheridan) (Errata: July 92) Telephone Off-Hook Timer July 1992 (SC12106921) (Darren Yates) Interphone: A 10-Station Exchange Pt 1 August 1992 For Your Home (CE92MC) (Jeff Monegal) Pt 2 September 1992 (Simplified Circuit: November 1992) (Refinement: Circuit Notebook, June 1993) Fibre Optic Two-Way Intercom May 1996 (Leo Simpson) (DIY/Ozitronics kit) The Alert-A-Phone (Loud Telephone Ringer) February 1997 (Derek Diggles) (Telephone Technical Services kit) Telephone Exchange Simulator For Testing February 1998 (Mike Zenere - kit available) ETB Backup Battery For Cordless Phones October 1999 (12510991) (Leo Simpson) (Jaycar kit) Addacom - Intercom Station Expander November 1999 (Paul Hoad) (Hoad Electronics kit) PC Powerhouse (12112991) (Barry Hubble) December 1999 (Jaycar kit) (Errata: January 2000) Telephone Off-Hook Indicator (12101001) January 2000 (John Clarke) (see Circuit Notebook August 2000 for modification) Message Bank & Missed Call Alert November 2000 (12111001) (Rick Walters/Leo Simpson) Phonome (12106011) (Leon Williams) June 2001 Do Not Disturb Telephone Timer July 2001 (12107011) (John Clarke) (Jaycar kit) Telephone Call Logger December 2001 (Frank Crivelli/Peter Crowcroft) (Ozitronics kit) Telephone Headset Adaptor July 2002 (12107021) (John Clarke) SMS Controller (12110041) (Peter Smith) Pt 1 October 2004 (Altronics K9050, DSE K7221, Jaycar KC5400) Pt 2 November 2004 (Errata: December 2004, March 2005, August 2005, December 2006) SMS Controller Add-Ons (Peter Smith) April 2005 Test Jig/PIR Sensor Interface/ Low-Battery Alarm (11107041 - see July 2004) VoIP Analog Phone Adaptor September 2005 (03109031) (Ross Tester) (Altronics K2780) (Errata: May 2006) Phone/Fax Missed Call Alert March 2006 (12103061) (Jim Rowe) PHOTOGRAPHY (13) Slave Flash Trigger (SC131588) (Greg Swain) April 1988 Alarm-Triggered Security Camera March 1993 (03103931-2) (Tony Nixon) IR Illuminator For Cameras & Night Viewers March 1995 (Branko Justic) (Oatley Electronics kit) Photographic Timer For Darkrooms April 1995 (10304951) (John Clarke) (Errata: November 1996) (Ref Circuit Notebook, Dec 96, For 1/4 Stops) (DSE, Jaycar kits) Flash Attack! Adding An External Battery Pack October 1998 To A Flashgun (Julian Edgar) Electric Camera Shutter Release (Julian Edgar) April 2003 Smart Slave Flash Trigger July 2003 (Jim Rowe) (13107031) (Altronics K8080, DSE K3228, Jaycar KC5364) Safe-T-Flash: A Safe Flash Trigger For Your April 2008 Digital SLR Camera (Ross Tester) A Quick'n'Easy Digital Slide "Scanner" June 2008 Programmable Time Delay Photoflash Trigger February 2009 (13102091) (Jim Rowe) (Errata: April 2009) (Altronics K6009) Beam-Break Flash Trigger June 2009 (13106092) (Jim Rowe) BATTERY CHARGERS (14) Megafast Nicad Battery Charger June 1988 (SC1410588) (Greg Swain) DC-To-DC (Switchmode) Battery Charger September 1988 For 12V Gel Batteries (SC14109881) (Garry Cratt) (Amateur Radio) (Errata: November 1988) 6/12V Charger For SLA Batteries March 1990 (SC1410390) (Darren Yates) (see Ask SC June 1990 for high current variations) (The UC3906 SLA Battery Charger IC [Feature] March 1990) Electronic Load For Checking Power Supplies May 1990 (SC1410690) (Garry Cratt) (Amateur Radio) Fast Charger For Nicad Batteries Pt 1 January 1991 (SC14101911) (John Clarke/Greg Swain) Pt 2 February 1991 13.5V 25A Power Supply For Amateur Transceivers (SC14105911-2) Pt 1 May 1991 (John Clarke/Leo Simpson) Pt 2 June 1991 Battery Charger For Solar Panels November 1991 (Steve Calder) (Jaycar kit) (Errata: Feb 92) Nicad Battery Discharger (SC14207921) July 1992 (Marque Crozman) (Errata: Sept 1992) (See also Ask SC October 1992 for modification) Portable 12-Volt SLA Battery Charger July 1992 (SC14107921) (Darren Yates) (Errata: Sept 1992) (Jaycar kit) (see Circuit Notebook Dec 94 or 20EPC for 6-12V Converter) 6/12V SLA Battery Charger (SC14109921) August 1992 (Darren Yates) (Errata: Sept 1992) (See Ask SC April 1997 for prevention of unwanted battery drain) Thunderbird Battery Charger October 1992 (SC14110921-2) (Herman Nacinovich) Automatic Nicad Battery Discharger November 1992 (Bernie Gilchrist) (Errata: Jan 1993) (DSE kit) Solar Charger For 12V Batteries (Branko Justic) March 1993 Nicad Cell Discharger (14305931) (John Clarke) May 1993 (Errata: July 1993) (DSE kit) (see Nov 94 for twin cell modification) Microprocessor-Controlled Nicad Battery Charger September 1993 (Warren Buckingham) (Errata: Sept 94) (CIE kit) Switching Regulator For Solar Panels January 1994 (Otto Priboj) Nicad Zapper (11106941) (Darren Yates) August 1994 (Jaycar kit) (Errata: April 1998) (see also Circuit Notebook, June 1995) Automatic Discharger For Nicad Battery Packs September 1994 (14306941) (John Clarke) (Altronics, Jaycar kits) Dry-Cell Battery Rejuvenator (Darren Yates) November 1994 Twin Cell Nicad Discharger (14305931) November 1994 (Darren Yates) (Refer project May 1993) Sun Tracker For Solar Panels January 1995 (SC13101951) (Nenad Stojadinovic) Fast Charger For Nicad Batteries (14309951) October 1995 (John Clarke) (Errata: June 97) Automatic 10-Amp Battery Charger June 1996 (14105961-2) (Rick Walters) (Altronics, Jaycar kits) 2A SLA Battery Charger (14305961) July 1996 (John Clarke) (Altronics, DSE, Jaycar kits) (Errata: October 1996) Multi-Purpose Fast Battery Charger Pt 1 February 1998 (14302981-2) (John Clarke) Pt 2 March 1998 (Altronics, DSE kits) (Errata: May 1998) A Constant Current Charger With Mechanical Timer July 1998 (Branko Justic) (Oatley Electronics kit) A 12V Trickle Charger For "Float" Conditions October 1998 (14110981) (Rick Walters) (Errata November 1998) (Altronics, Jaycar kits) (Refer Circuit Notebook February 1999 For 24V Output, June 2000 For LED Indication) Intelligent Nicad Battery Charger April 2001 (14104011) (Peter Hayles) (order PIC from www.angelfire.com/electronic/hayles) Multi-Purpose Fast Battery Charger, MkII Pt 1 June 2001 (14106011 & 14302982) (John Clarke) Pt 2 July 2001 (includes lithium batteries) (Altronics K1672, DSE, Jaycar KC5315) (Errata: November 2001, December 2001, October 2002) Intelligent Solar Power Battery Charger March 2002 (Ross Tester) (Oatley Electronics kit) (Errata: April 2002, May 2003) Constant High-Current Source (Ross Tester) June 2002 (Oatley Electronics kit) SuperCharger For NiCad & NiMH Batteries Pt 1 November 2002 (14111021-2-3) (Peter Smith) (no kit) Pt 2 December 2002 (Errata: June 2004) SuperCharger Addendum (14111024) March 2003 12V SLA Battery Float Charger (To Suit PortaPAL) March 2003 (01103034) (Errata: April 2003) (Altronics K1695) Charger For Deep-Cycle 12V Batteries Pt 1 November 2004 (14111041-2-3) (John Clarke) Pt 2 December 2004 (Altronics K1675) Salvage It! Build A $2 Battery Charger February 2005 (Julian Edgar) Lead-Acid Battery Zapper July 2005 (14107051) (Jim Rowe) (Jaycar KC5414) (Errata: September 2005, November 2005) A Charger For Your iPOD Or MP3 Player February 2006 (14102061) (John Clarke) (Errata: March 2006, June 2007) Lead-Acid Battery Zapper & Condition Checker May 2006 (14105061) (Jim Rowe) (Jaycar KC5427 exclusive) (Errata: October 2006, December 2006) Salvage It! A High-Current 12V Car Battery June 2006 Charger For Almost Nothing (Julian Edgar) Cordless Power Tool Charger Controller December 2006 (14112061) (John Clarke) (Jaycar KC5436) (Errata: February 2007, April 2008) Intelligent 12V Battery Charger January 2007 (Branko Justic/Ross Tester) (Oatley K215) Fast Charger For NiMH & Nicad Batteries September 2007 (14109071) (John Clarke) (Errata: December 2007) (Altronics K1655, Jaycar KC5453) Mini Solar Battery Charger February 2008 (OE-K251A) (Branko Justic) (Oatley kit) 12VDC Battery Charge Controller April 2008 (14104081) (John Clarke) (Altronics K1677) (See Circuit Notebook May 2008 for modifications) REMOTE CONTROL (15) UHF Remote Control Car Alarm Switch December 1989 (Greg Swain) (DSE kit) (Errata: January 1994) High Stability UHF Remote Transmitter August 1990 (DSE kit) (Greg Swain) (Errata: January 1994) Remote Control Extender For VCRs September 1990 (SC15108901) (John Clarke/Greg Swain) How To Connect Two TVs To One VCR November 1990 (Jim Lawler) Remote Controller For Garage Doors Pt 1 March 1991 (Branko Justic) (Errata: June 1991) Pt 2 April 1991 (See also Circuit Notebook October 1991) Infrared Remote Control For Model Pt 1 April 1992 Railroads (SC91488/SC15204921-2) Pt 2 May 1992 (Leo Simpson/John Clarke) Pt 3 June 1992 (Ref SC April 1996: Replacement Module For 14MRP The SL486 & MV601 Remote Control Receiver ICs) Low-Cost Speed Controller Pt 1 November 1992 Using Discrete ICs (Silvertone kit) Pt 2 December 1992 (Bob Young) (Remote Control) Pt 3 January 1993 (Practical Applications: Pt 4 April 1993) (see Ask SC & Errata: January 1993) IR Remote Volume Control For Hifi Pt 1 May 1993 Systems (01305931-2) (John Clarke) Pt 2 June 1993 (Ref: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs: April 1996) Remote Control For Woofer Stopper (Dog Silencer) June 1993 (03105932) (Darren Yates) (Oatley Electronics kit) Stereo Preamplifier With IR Remote Pt 1 September 1993 Control (01308931-2) (John Clarke) Pt 2 October 1993 (Errata: April 1994) Pt 3 November 1993 (Ref: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs: April 1996) Remote-Controlled Electronic Cockroach September 1993 (08307931) (John Clarke) Remote Controller For Garage Doors December 1993 (Branko Justic) (Oatley Electronics kit) Intelligent IR Remote Controller March 1994 (Ben Douchkov) (Benetron kit) Level Crossing Detector For Model Railways March 1994 (15203931) (John Clarke) (DSE, Jaycar kits) 14MRP Sound & Lights For Level Crossings April 1994 (15203932) (John Clarke) (DSE, Jaycar kits) 14MRP Remote Control Extender For VCRs April 1994 (15303941) (John Clarke) (Errata: June 1994) (Altronics, Jaycar kits) Multi-Channel Infrared Remote Control May 1994 (15105942) (Brian Roberts) (Errata: March 1995) Dual Channel UHF Remote Control January 1995 (Bernie Gilchrist) (DSE kit) IR Remote Control For The Railpower MkII January 1996 (09101961) (Rick Walters) Three Remote Controls To Build (Branko Justic): Single Channel UHF Remote Control (Oatley kit) February 1996 Dual Channel UHF Remote Control (Oatley kit) February 1996 Eight Channel IR Remote Control (Oatley kit) February 1996 (See Circuit Notebook May 1997 For Latched Outputs) Remote Control Extender For VCRs (15107961) July 1996 (Rick Walters) (Jaycar KC5209) (Errata: Sept 2002) A Fail-Safe Module For The Throttle Servo June 1997 (Bob Young) (Silvertone Electronics kit) InfraRed Remote Volume Control (1 to 8 Channels) July 1997 (Leo Simpson) (Oatley Electronics kit) An In-Line Mixer For Radio Control Receivers July 1997 (Bob Young) (Silvertone Electronics kit) Remote Controlled Gates For Your Home August 1997 (15108971) (Phung Mai) (Errata: September 1997) Pan Your CCD Video Camera By Remote Control January 1998 (Branko Justic) (Oatley Electronics kit) Automatic Garage Door Opener Pt 1 April 1998 (05104981-2) (Rick Walters) Pt 2 May 1998 Remote Control Tester February 1999 (Leo Simpson) (Oatley Electronics kit) ETB 10-Channel IR Remote Control Receiver February 2002 (15102021) (John Clarke) (Altronics kit, Jaycar KC5326) Remote Volume Control For Stereo Amplifiers June 2002 (15106021) (John Clarke) (Altronics, DSE kits) Remote Volume Control For The Ultra-LD 2 x 100W July 2002 Stereo Amplifier (01107021, 15106022-3) Rolling Code 4-Channel UHF Remote Control July 2002 (Ross Tester) (Oatley Electronics kit) EPC2 (Errata: September 2002 & December 2002) (See Circuit Notebook February 2003 for 5th Channel) Versatile 12-Channel Infrared Remote Control September 2002 (Frank Crivelli/Ross Tester) (Kits-R-Us) Long-Range 4-Channel UHF Remote Control June 2003 (Greg Swain) (Oatley Electronics kit) (For PC or PICAXE control see project April 2004) Long-Range 16-Channel UHF Remote Control System October 2003 (Jeff Monegal) (Oatley Electronics kit) Bed Wetting Alert September 2004 (15109041-2) (John Clarke) (Jaycar KC5396) Portable/Wireless Doorbell September 2004 (15109043) (Jaycar KC5397) Garage Door/Gate Remote Controller October 2004 (Oatley Electronics K023C) (Errata: November 2004, January 2005) Garage Door Remote Telltale January 2007 (03101071-2) (Jim Rowe) 12V Speed Controller or 12V Lamp Dimmer November 2008 (05111081) (Leo Simpson) 433MHz UHF Remote Switch January 2009 (15101091-2) (John Clarke) (Notes: March 2009) (Altronics K1955/K1956, Jaycar KC5473) UHF Remote Dual 230V Power Switch May 2009 (Branco Justic/Ross Tester) (Oatley K231B) LASERS AND LIGHTING (16) Speedi-Watt Power Controller (Universal Dimmer) December 1987 (SC1011287) (Leo Simpson) (Modification for fluorescent lights, see Ask SC March 1988) Build Your Own Lightbox (Leo Simpson) March 1988 Party (Flash) Light (Stephen David) May 1988 DiscoLight (SC1010688) Pt 1 July 1988 (John Clarke & Leo Simpson) Pt 2 August 1988 (Altronics, DSE, Jaycar kits) (Modification for use with neon lighting, see Ask SC October 1995) Touch Lamp Dimmer (SC11106891) (Leo Simpson) June 1989 Extension For Touch Lamp Dimmer July 1989 (SC10107892) (Leo Simpson) Add Dimming Controls To The DiscoLight October 1990 (SC10111902) (John Clarke) Battery Powered Laser Pointer November 1990 (Leo Simpson) (Oatley Electronics kit) Build A Bigger Laser (Otto Priboj) January 1991 (Oatley Electronics kit) Three Inverters For Fluorescent Lights February 1991 (SC11103901) (Otto Priboj) (Jaycar kit) Fluorescent Light Simulator For Model Railways May 1991 (Darren Yates) 14MRP Four Channel Lighting Desk/Dimmer Pt 1 June 1991 (SC10106911/2) (John Clarke/Leo Simpson) Pt 2 July 1991 (DSE kit) Compact Solid-State Laser Pointer December 1991 (Leo Simpson) (Oatley Electronics kit) Low-cost Mini Gas Laser (11104931) May 1993 (Flavio Spedalieri) (Oatley Electronics kit) High Efficiency Inverter For Fluorescent Tubes November 1993 (11312931) (John Clarke) (Altronics kit) Low-Voltage LED Stroboscope December 1993 (04112931-2-3) (Darren Yates) High Power Dimmer For Incandescent Lamps August 1994 (10107941) (Marque Crozman) Electronic Ballast For Fluorescent Lights October 1994 (11309941) (John Clarke) IR Illuminator For Cameras & Night Viewers March 1995 (Branko Justic) (Oatley Electronics kit) Build Your Own Laser Lightshow May 1996 (Branko Justic) (Oatley Electronics kit) Build A Ropelite (Robert Riede) June 1996 (Oatley Electronics kit) Build A Laser Pointer From A Kit June 1996 (D Light) (DSE kit) Electronic Starter For Fluorescent Lamps August 1996 (10308961) (John Clarke) (DSE kit) (Errata: October 1996) Power Control With A Light Dimmer October 1996 (Leo Simpson) Low-Cost Fluorescent Light Inverter November 1996 (Branko Justic) (Oatley Electronics kit) How To Repair Domestic Light Dimmers November 1996 (Leo Simpson) Stop Blowing Incandescent Lights (Feature) January 1997 (Leo Simpson) Neon Tube Modulator For Cars & Light Systems May 1997 (05105971) (Rick Walters) (DSE, Jaycar KC5221) Build A One Or Two-Lamp Flasher January 1998 (16301981) (John Clarke) (DSE, Jaycar kits) 12V CFL (Compact Fluorescent Lamp) Inverter March 1998 (Branko Justic) (Oatley kit) (Errata: Aug 1998) Laser Light Show (Branko Justic) (Oatley kit) April 1998 Beat Triggered Strobe Light August 1998 (16305981) (John Clarke) (Altronics K5792) Proximity Switch For 240VAC Mains Lights August 2000 (Leo Simpson/Allan Bonnard) (Futurlec kit) Santa & Rudolph Christmas Lights Display November 2000 (16111001) (John Clarke/Ross Tester) (DSE kit, Jaycar KC5302) Build A LED Torch (11112001) (John Clarke) December 2000 (DSE kit) (See Circuit Notebook January 2002, May 2002 and October 2002) Pardy Lites (Party Lights) (Ross Tester) December 2001 (Oatley Electronics kit) (Errata: April 2002) The Itsy-Bitsy USB Lamp (Stan Swan/Ross Tester) March 2002 (Jaycar KC5328) Very Bright, Very Cheap Krypton Bike Light September 2003 (Julian Edgar) Prawnlite January 2005 (Branko Justic/Ross Tester) (Oatley K217) Universal High Energy LED Lighting System Pt 1 April 2006 (11004061) (John Clarke/Julian Edgar) Pt 2 May 2006 Salvage It: Super Bicycle Light Alternator October 2006 (Julian Edgar) Bike Wheel POV Display September 2007 (16109071) (Ian Paterson) 12V Speed Controller or 12V Lamp Dimmer November 2008 (05111081) (Leo Simpson) SAFETY (17) Car Safety Light (SC0511088) (John Clarke) November 1988 (see also Circuit Notebook February 1989) 20EPC Load Protector For Power Supplies June 1990 (SC0420490) (John Clarke/Leo Simpson) Baby Room Monitor (SC06210911) January 1992 (John Clarke) RCD Safety Switch Checker (John Clarke) February 2000 (Altronics, Jaycar kits) WOODWORKING (18) Portable Electronics Workbench (Leo Simpson) November 1987 Build Your Own Lightbox (Leo Simpson) March 1988 Electronics Workbench For Home Or Lab July 1992 (Leo Simpson) CIRCUIT NOTEBOOK (19) DC Speed Control For Model Motors November 1987 Measuring The Tracking Of Dual Potentiometers November 1987 How To Obtain -5V From A +5V Supply November 1987 Frequency Comparator With Visual Display November 1987 Low Power RAM EPROM Emulator December 1987 Simple Transistor Oscillator December 1987 Courtesy Light Delay Switch December 1987 Voltage Regulator For 12V Alternators December 1987 Sequential Lamp Flasher For Cars January 1988 High Impedance Op Amp With Input Protection January 1988 Crowbar Over-Voltage Protection For January 1988 Power Supplies Substituting Electrolytic Capacitors January 1988 Thermatic Fan Timer For Cars February 1988 Dynamic Noise Reduction For Cassette Players February 1988 El Cheapo Car Burglar Alarm February 1988 Higher Power Car Stereo Conversion (p94 Ask SC) February 1988 (Ref Car Stereo For Your Home, November 1987) Bridge Circuit For Amplifier Modules February 1988 (p95 Ask SC) (See also EA June 1985) Adjustable Load For Power Supplies March 1988 Synchroscope For Frequency Comparison March 1988 CRO Probe Modification March 1988 Precision Reset For Microprocessors March 1988 How To Dim Fluorescent Lights (p95 Ask SC) March 1988 High Speed Pulse Amplifier April 1988 Headphone Noise Monitor For Power Amplifiers April 1988 Quiz Game Using A CMOS Latch April 1988 VU Meter For Tape Dubbing April 1988 How To Stretch Pulse Widths (p94 Ask SC) April 1988 Voltage & Current Metering For Power Supplies May 1988 Improvements For Modem End-Of-File Indicator May 1988 High-Q Notch Filter May 1988 Dual Power Circuit With Back-Up June 1988 Battery Indicator Brighter Flashing Lamp For Alarms June 1988 Flashing Pilot Lamp June 1988 Fuel Cut-Off Solenoid For Cars July 1988 Telephone Ring Simulator August 1988 DC Stereo Volume Control August 1988 Digital Lissajous Frequency Comparator August 1988 National Semiconductor's LM12 150W Op Amp September 1988 Off Peak Indicator For Hot Water Systems October 1988 Audio Overload Detector October 1988 Long Interval Timer October 1988 Video Distribution System (p97 Ask SC) October 1988 Self-Oscillating Detectors Explained (p98 Ask SC) October 1988 Knightrider LED Scanner (Jaycar kit) November 1988 12-240V 60VA Inverter November 1988 Volume Control For Power Amplifier (p102 Ask SC) November 1988 Microphone Preamp Circuit (p103 Ask SC) November 1988 Charger For 12V Gel Batteries December 1988 Constant Current Nicad Charger December 1988 Pulse Charger For Dry Cells January 1989 200-250mA DC Electronic Fuse January 1989 RS232 To RS422 Adaptor January 1989 Simple Binary Encoded Keypad February 1989 Crystal Oscillator Using A CMOS 555 February 1989 Alternative Override For Car Safety Light February 1989 (Ref Project November 1988, 20EPC) Tacho Connection For HEI (p93 Ask SC) February 1989 Photo-Interruptor For Digital Counter March 1989 Schmitt Trigger Using Discrete Transistors March 1989 Wide Bandwidth Video Amplifier March 1989 High Impedance 1W Amplifier March 1989 Keyboard Sound Improver April 1989 Keypad Alarm For Car Security April 1989 Relay Output For Door Minder April 1989 (Ref Project February 1988) Leading Zero Blanking For Digital Speedos May 1989 Thermostat For Cooling Fans May 1989 Bit Saver For Soldering Irons May 1989 Power Supply For Walkman Radios June 1989 X-Y Light Source Plotter June 1989 Tone Decoder Input Control Circuit July 1989 Using Centre-Zero Meters In Power Supplies July 1989 Low Cost Locker Alarm July 1989 Channel Switch For DSE UHF Converter August 1989 Flasher Unit For Cars August 1989 Fuse-Fail Alarm For Cars August 1989 Car Battery Voltage Monitor August 1989 Using An Impulse Tacho With The High Energy 20EPC Ignition System (p109 Ask SC) August 1989 Sawtooth/Triangle Waveform Generator September 1989 Digitally Controlled Stereo Volume Control September 1989 Siren & Flash Generator For Toy Cars October 1989 Balanced Outputs From A Single Supply October 1989 Timer For Motor Driven Cameras October 1989 Walkman Car Stereo Amplifier November 1989 Traffic Light System For Model Railways November 1989 4-Channel Mixer With Effects Send November 1989 High Current Intelligent Charger December 1989 Exhaust Temperature Alarm For Boats December 1989 Self Cycle Bilge Pump Control December 1989 El Cheapo Buffer Amplifier December 1989 Stereo FM Microphone Transmitter December 1989 6V Version Of Brake Lamp Flasher (p117 Ask SC) December 1989 (Ref project April 1989) Quiz Game With Light Chasers January 1990 High & Low Boost For PA Loudspeakers January 1990 Clipping Indicator For Stereo Amplifiers January 1990 Electronic Speedo February 1990 Parametric Equaliser February 1990 Simple Transistor Beta Tester February 1990 30-Second Bilge Pump February 1990 100-Sequence LED Chaser March 1990 Pulse Width Modulated Signal Compressor March 1990 Bilge Pump With 15s Sloshing Delay March 1990 Pulse Width Modulated Signal Expander April 1990 Low Cost Alarm Status Indicator April 1990 Single Supply Instrumentation Amplifier April 1990 Delay Circuit For Intermittent Wipers May 1990 24V Gel-Cell Battery Charger May 1990 (Ref project March 1990) Adjustable Boxing Timer May 1990 2-Phase Oscillator Uses A Flipflop May 1990 Antenna Control In Holden Cars June 1990 Gutsy 220V Power Supply June 1990 40W Bridged Power Amplifier June 1990 Driving Stepper Motors From A July 1990 Parallel Printer Port Switching Mains With Your Computer July 1990 One-Chip DC Volume Control July 1990 Electronic Time Delay Switch August 1990 Effective In-Circuit Battery Tester August 1990 Remote Control For Early Rank Arena TVs August 1990 Overvoltage Protection For Power Supplies August 1990 2.4GHz Prescaler For 1GHz Frequency Meter September 1990 (see Project November 1987-January 1988) Low Cost Battery Minder September 1990 Traffic Lights For Model Railways September 1990 Electronic Control For Radiator Fan September 1990 1Hz Timebase With Variable Pulse Width September 1990 Expanded Scale 11.6-12.6V Voltmeter October 1990 Low Cost Mains Frequency Indicator October 1990 Obtaining -5V From A +5V Supply October 1990 Digital Staircase Waveform Generator October 1990 Low Frequency Sample & Hold Circuit November 1990 Single Chip Low Battery Alarm November 1990 FM Stereo Test Tone Transmitter November 1990 Current Limiter For 240VAC Lamps December 1990 Climate Controller For A Greenhouse December 1990 Constant Volume Amplifier January 1991 Diode Test Adaptor For Multimeters January 1991 Precision Timer Goes To 46.6 Hours January 1991 Wide Range Inductance Meter February 1991 Mid-Frequency Tone Control February 1991 Water/Coolant Level Alarm For Car Radiators February 1991 Audio Filter For HF Receivers March 1991 3MHz Digital Frequency Counter March 1991 Direct Coupled Sniffer Probe March 1991 Simple Metal Detector March 1991 300Hz-3kHz Audio Filter April 1991 Simple IR Detector Checks Remote Controls April 1991 Bare-Bones Dual Power Supply April 1991 Lightning Distance Meter May 1991 Toy Car Motor Controller May 1991 Switchmode Power Supply June 1991 Discharger For Nicad Battery Packs June 1991 Shunt Controller For Solar Panels June 1991 3-Team Quiz Adjudicator July 1991 Analog Data Logging Via A PC's Parallel Port July 1991 Leading Zero Suppression For August 1991 The Capacitance Meter Automatic Controller For Sullage Pumps August 1991 Low Distortion Sinewave Oscillator August 1991 Soft Start For 240V Lamps September 1991 Voltage Regulator For Alarm Backup Battery September 1991 Simple Nicad Charger With 16-Hour Timer September 1991 How To Dim Fluorescent Lights (p94 Ask SC) September 1991 Dual Tracking Power Supply Uses Cheap Parts October 1991 DC Offset Canceller For Amplifiers October 1991 Battery Charging For Garage Door Controller October 1991 (Ref Project March/April 1991) 3-Way Quiz Game Uses Relays & Diodes November 1991 Low-Cost Variable Power Supply November 1991 Speed Sensitive Direction Switch November 1991 Power Supply For Portable Valve Radios November 1991 Budget Burglar Alarm System December 1991 Expandable 3-Way Quiz Game December 1991 Power Supply For Flash Gun December 1991 12 LED Voltmeter December 1991 Signalling For Model Trains January 1992 . 14MRP Automatic Night Light Timing Circuit January 1992 Alarm Dialler uses An EPROM February 1992 8-Channel ADC For PCs February 1992 Courtesy Light Delay For Cars March 1992 Adjustable 20V Power Supply March 1992 Traffic Lights For Model Train Layouts March 1992 Using Your Games Port For Data Input March 1992 Electronic Ignition & Positive Chassis Vehicles (p91 Ask SC) March 1992 Scanning Facility For A CB Radio April 1992 EPROM-Based Stepper Motor Driver April 1992 Low Cost Audio Oscillator May 1992 Bulletin Board Watchdog May 1992 Airconditioning Override With Kickdown Switch May 1992 Nicad Fast Charger Timer May 1992 Loudspeaker Protector has Power-On Delay June 1992 Courtesy And Headlight Delays For Cars June 1992 Chocolate Wheel With Fixable Numbers June 1992 Sequential Combination Lock July 1992 Modification To Headlight Controller July 1992 BCD & Decimal To 7-Segment Decoding With July 1992 An EPROM Musical Chime Generator August 1992 12VDC To 240VAC Inverter For Small Appliances August 1992 High Performance Drill Speed Controller August 1992 Simple Lap Timer For Slot Cars August 1992 Relay Output For Car Reversing Alarm (p92 Ask SC) August 1992 (Ref project January 1989) Traffic Lights For Model Train Layouts September 1992 Automatic Electric Blanket Controller September 1992 Tester For 2-Input Logic Gates September 1992 Cross-Coupled FET Mixer September 1992 Automatic Soldering Iron Timer October 1992 Stutter Trigger For An Audio Strobe October 1992 Self-Contained Autofire Module For Electronic October 1992 Games Reversing Light Chaser For 12V Lamps November 1992 A Low Cost Crystal Checker November 1992 2-Chip Electronic Blackjack Game November 1992 Timer Safeguards Rechargeable Cells November 1992 Board Game Countdown Timer December 1992 Power On/Low Battery Indicator December 1992 High-Current 0-20V Power Supply December 1992 (Errata: January 1993) LED VU Scanner Display January 1993 Parking Lights Reminder January 1993 Cable Tester With LED Indicators January 1993 Simple Tester For IR Remote Controls January 1993 Horn Blower For Mobile Telephones February 1993 Square Wave Frequency Doubler February 1993 Simple Way To Make PC Boards February 1993 Robotics Interface For PCs February 1993 A 20-Metre Director Conversion Receiver March 1993 Blown Fuse Indicator March 1993 Simple 2-Input Logic Gate Identifier March 1993 Breakerless Pick-Up For Car Ignition April 1993 Dynamic Noise Reduction Circuit April 1993 VFO Controlled Transmitter For 80 Metres April 1993 Interface For The LCD Panel Meter May 1993 (see Project September 1992) Seven Day Hose Controller May 1993 Add-On Circuit For A Sidereal Clock June 1993 Battery Monitor For Solar Chargers June 1993 Refinement For The Interphone Exchange June 1993 Repeater Time-Out Indicator June 1993 Discrete Step-Down Voltage Converter June 1993 Battery Charge Status Monitor July 1993 Single-Chip Combination Lock July 1993 Pulser Probe For TTL & CMOS July 1993 Low-Cost Piezo Screamer Siren July 1993 Increasing The Output Of A 3-Terminal Regulator (p93 Ask SC) July 1993 Low-Cost Isolation Amplifier August 1993 Low Distortion Oscillator August 1993 Phase Adapter For Digital Multimeters August 1993 Handy Hint (Pulsing Beeper) August 1993 AND or OR Gates With Diodes (p92 Ask SC) August 1993 (Ref Quiz Game Adjudicator, July 1993) Wide Range Phase Control September 1993 Regulator For Solar Panels September 1993 Microcontroller Timer September 1993 RF-Linked IR Remote Control Extender October 1993 Electronic Mousetrap Catches 'Em Alive October 1993 Electronic Starter For Fluorescent Lights October 1993 Low-Cost Controller For Model Trains November 1993 6/12V Gel Cell Charger November 1993 Photographic Flash Meter November 1993 Power Supply Pre-Regulator Circuit November 1993 Single Chip Touch Switch December 1993 240V Motor Speed Control December 1993 Amended Pulser Probe (see July 1993) January 1994 Beta Measurements With An Analog Multimeter January 1994 Induction Motor Speed Controller January 1994 Single-Pot Wien Bridge Oscillator January 1994 Using Two Train Controllers To Operate February 1994 One Section Replacing Selenium Cells With Solar Cells February 1994 Digital Tachometer & Dwell Angle Meter February 1994 Resistance & Capacitance Meter March 1994 Adding Latched Outputs To The IR Train Controller March 1994 (Ref SC April, May, June 1992) Low Power Voltage Booster March 1994 Simple Quiz Game Adjudicator March 1994 Cockroft-Walton Voltage Multiplier (p93 Ask SC) March 1994 Battery-Life Indicator For Radio Microphones April 1994 Block Signalling For Model Trains April 1994 Simple 4-Step Voltage Comparator April 1994 Debounce Circuit For Counter Input (p92 Ask SC) April 1994 (Ref 3-Digit Counter Module, September 1990) Battery Voltage Indicator For Cars May 1994 Light Meter Adaptor For A DMM May 1994 Delayed Reset For PCs & Compatibles May 1994 Six-Way Decision Maker Uses Two ICs May 1994 Optical Pickup For HEI (p92 Ask SC) May 1994 Variable Constant Current Load June 1994 RF Actuated CW Sidetone Unit June 1994 Photographic Lightmeter Adapter June 1994 Discrete Monostable Multivibrator June 1994 Positive To Negative DC Inverter July 1994 Floating Constant Current Limit July 1994 Tester For IR Remote Controls July 1994 Analog To Digital Interface Circuit July 1994 Theft Protection For Automatic Cars August 1994 20EPC Sensitive Lightmeter For The Darkroom August 1994 Low-Cost LED Level Display August 1994 Optoelectronic Pickup For Ignition Systems August 1994 (Ref High Energy Ignition Project, May 1988) 20EPC Tape Equalisation For Preamp (p90 Ask SC) August 1994 (Ref Universal Preamplifier, April 1994) Timer For Security Lights September 1994 Tester For Radio Control Servos September 1994 Automotive Voltage Regulator September 1994 20EPC Test GPO For Workshops October 1994 Flashing Battery Monitor October 1994 PC Alert - A Simple Watchdog Alarm October 1994 Auto-Shutoff For Battery Circuits October 1994 Super Bright LED Brake Light Array November 1994 (Errata: December 1994) 12-24V Circuit Tester For Cars & Trucks November 1994 20EPC Display Dimmer For LED Clocks November 1994 Low Cost Photo Timer November 1994 Power Supply For Subsidiary Amplifier December 1994 Rotary Encoder Decoder December 1994 Simple 1-Chip Logic Probe December 1994 6V To 12V Converter December 1994 (Ref 12V SLA Battery Charger, July 1992) 20EPC Using 3-Wire Railway Crossing Lights January 1995 Electronic Guitar Tuning Fork January 1995 Level Translator For PC Games Port January 1995 Analog Multiplier Uses Transconductance Amp February 1995 Thumb Wheel Selection For Pattern Generator February 1995 (Ref SC Nov/Dec 1991) Pump Control System Uses LDT March 1995 Adjusting Pulse-Train Mark-Space Ratio March 1995 Buzzer For Infrared Security Light (p91 Ask SC) March 1995 48V Charger For SLA Batteries (Ref SC July 92) April 1995 Tachometer Pick-Up For Diesel Engines April 1995 (Ref SC August 1991) Temperature Controller For Home Brewers April 1995 Digital Readout For A Weighbridge May 1995 Balanced Microphone Preamplifier Incorporating May 1995 "Phantom Power" (Ref Project p38 April 1995) Automatic Charger/Discharger May 1995 Ask SC p93: Using A Multi-Tap Transformer With May 1995 The Walkaround Throttle For Model Railroads (Errata: August 1995) Emergency Lighting Circuit Has Charger June 1995 Expanded Scale Voltmeter For Cars June 1995 Low Cost Nicad Zapper (Ref SC August 1994) June 1995 Simple Probe Detects Logic Levels & Pulse Trains June 1995 Stereo Signal Switcher For Testing June 1995 Dummy Printer For Testing Parallel Ports On A PC June 1995 Encoder For Surround Sound Decoders July 1995 Car Radiator Water/Coolant Alarm For Positive July 1995 Earth Vehicles (Ref Project June 1994) Relay Driver Board With High Voltage Supply August 1995 (Oatley Electronics kit) Automatic Antenna Controller For Cars August 1995 Rev Limit Indicator For Rally Cars September 1995 Car Courtesy Light Monitor & Extender September 1995 Touch Sensitive Switch Uses A Single IC September 1995 Speed Controller For Small Motors In Models October 1995 Adding Tail Lamps To Guards' Vans October 1995 Low-Cost Stepper Motor & Controller October 1995 Ask SC p93: DiscoLight With Neon Lighting October 1995 (Ref Project July/August 1988) Weekly Rubbish Reminder November 1995 Simple Solar Tracker November 1995 Multi-Way Switching For 240VAC Lighting November 1995 Ignition Coil/Condenser Tester November 1995 Campervan Inverter Controller December 1995 Simple LED Chaser Using Transistors December 1995 Optical Tachometer Has Digital Readout December 1995 (Ref SC May 1988 & SC December 1993) Automatic Level Control For Line Signals January 1996 Bilge Pump Timer Uses A Mercury Switch January 1996 PWM Speed Controller January 1996 DC Amplifier For A Centre-Zero Meter January 1996 Moisture Monitor For Pot Plants January 1996 Reluctor Circuit For High Energy Ignition February 1996 (Ref SC May 1990) Intercom Uses Surplus Telephones February 1996 4-Channel Mixer Modifications February 1996 (Ref SC January 1992) Model Railway Level Crossing Control March 1996 Binary Counting Demonstrator March 1996 Charge Controller For A Transceiver March 1996 Precision Timer Uses Cheap Crystal March 1996 Brake Pedal Alarm Circuit March 1996 Body Filler Depth Detector April 1996 Micropower Low-Voltage Indicator April 1996 RS232 Modem Switcher April 1996 Single Rail Operation For The TDA1514 April 1996 Reluctor Version Of Programmable Ignition May 1996 (Ref Project March 1996) Larger Search Coils For The Metal Locator May 1996 (Ref Project May 1994) 0-18V Power Supply With Current Limiting May 1996 Electrolytic PC Board Etcher May 1996 Bridge Operation For LM3886 Stereo Module June 1996 (Ref Project February 1995) Stereo Preamplifier With Selectable Gain June 1996 (Ref Project April 1994) Novel Modulator For Signal Generators June 1996 Ask SC p92: Remote Control For Dolby Decoder June 1996 (Ref Project November/December 1995) Ask SC p93: Loudspeaker Protection/Compression June 1996 (Ref ALC Project March 1996) Multi-Cell Charging With The TEA1100 July 1996 Random Number Generator July 1996 0-16V 15A Power Supply With Current Limiting July 1996 (Errata: September 1996) Tone Burst Source For Loudspeaker Testing August 1996 Cordless Telephone Ring Tone Booster August 1996 Low Cost Monitor Amplifier For 32 Ohm Headphones September 1996 Pulse Stretcher For Printer Signals September 1996 Digital Display For The Geiger Counter September 1996 (Ref Projects Sept 90 & Oct 95) Ask SC p94: Millivoltmeter Drive Modification September 1996 (Ref Project August/September 1988) Muting The LM3886 Module October 1996 (Ref Projects March 94 & Feb 95) Printer Port Zero Voltage Detector October 1996 6V Motor Speed/Direction Controller October 1996 Swimming Pool Lap Counter November 1996 Obtaining Balanced & Isolated 9V Supply Rails November 1996 Thermostatic Fan Controller November 1996 9V Nicad Battery Saver/Regulator November 1996 Overload Protected Power Supply December 1996 Adding 1/4 Stops To The Photographic Timer December 1996 (Ref project April 1995) VCO Has Constant Mark/Space Ratio December 1996 A Low Cost Darkroom Lamp January 1997 Nicad Battery Discharger Has Capacity Indication January 1997 AC Power Supply For Photographic Flashgun February 1997 Precision Analog Multiplier February 1997 Audible Headlight Reminder March 1997 Low Voltage Drop Bridge Rectifier March 1997 Automatic Pump Timer/Controller March 1997 12V PA System Has A Balanced Mic Input April 1997 Switching Circuit For The M65830P Digital Delay April 1997 12V Or 24V Lamp Flasher April 1997 Passive Network Reduces DC Offset Effect May 1997 SCR Pre-Regulator Circuit May 1997 Latched Outputs For IR Remote Control May 1997 (Ref Project February 1996) Ask SC p90 Master/Slave For Fast Clocks May 1997 (Ref Project December 1996) Low-Cost Telephone Intercom June 1997 Low-Loss Solar Battery Charger June 1997 Audio Signal Tracer With Inbuilt Amplifier June 1997 JFET Tester Adaptor For DMMs July 1997 Cheap Heatsink Temperature Sensor July 1997 Single Gate Oscillator July 1997 Timer With 240VAC Switching August 1997 Pistol Target Frame Timer August 1997 Thermatic Fan Monitor September 1997 Addressing The 16s Message Recorder September 1997 (Ref Project July 1993) (ISD distributor: Adilam Electronics 03 9761 4466) Intercom Uses Touch Phones September 1997 3-Aspect Signalling For Model Railways October 1997 Low Dropout 5V Regulator (Errata: November 1997) October 1997 Using The 12/24V Speed Controller As A Dimmer October 1997 (Ref Project June 1997) Single Supply Version Of LM3876/LM3886 Modules November 1997 (Ref Projects March 1994 & February 1995) Square Wave Pulse Generator November 1997 Changing The Neon Tube Modulator November 1997 (Ref Project May 1997) Ask SC p92 High Energy Ignition: Positive November 1997 Chassis Points Version (Ref Project May 1988) (Errata October 1998) Binary Guessing Game December 1997 Waveform Generator (Ref Project July 1997) December 1997 Monster Servo Uses A Windscreen Wiper Motor December 1997 Audio Signal Injector (Ref Project June 1997) December 1997 Ask SC p90 Preventing Solenoid Burnout December 1997 Programmable Multispark CDI January 1998 (Ref Project September 1997) Versatile Laser Beam Door Minder January 1998 12/24V Courtesy Lamp Extender For Cars January 1998 Solid State LED Oscilloscope January 1998 Electronic Circuit Breaker February 1998 Simple Op Amp Hybrid February 1998 Quasi-Peak Detector February 1998 RF Noise Generator March 1998 240VAC Powered Strobe Lamp March 1998 Cheap Ammeter Using LEDs March 1998 DC Amplifier For CRT Deflection April 1998 Engine Water Temperature Gauge April 1998 Nicad Cell Tester & Discharger April 1998 Deluxe LED Tester Identifies Leads May 1998 Torch Battery Recharger May 1998 Linear Voltage Controlled Oscillator May 1998 Current Indicator For 12V Battery Chargers June 1998 Charging Lithium Ion Cells June 1998 Code Access Control June 1998 Battery Capacity Meter Circuit June 1998 Bargraph Auto Tachometer July 1998 Phase/Program Indicator July 1998 N-Channel FET Tester July 1998 1.5V DC-DC Converter July 1998 LOPT/Shorted Turns Tester August 1998 Low Voltage Drop Bridge Rectifier August 1998 Thermal Protection For Power FETs August 1998 Stepper Motor Driver August 1998 High Frequency Driver Protection August 1998 Ask SC p91 Optoelectronic Ignition August 1998 (Ref High Energy Ignition Project, May 1988) 0V Output For Adjustable 3-Terminal Regulators September 1998 Simple Relay Voltage Booster September 1998 Automatic Reversing For Model Trains September 1998 DVM Adaptor For High Frequency AC September 1998 Independent Messages From Sound Recorder October 1998 Frequency Doubler For A Cruise Control October 1998 Charger Controller For An Outboard Motor October 1998 Fuel Injector Driver For Added Power October 1998 Regulator For A Car Battery Charger November 1998 DTMF Radio Alarm System November 1998 Improved Relay Voltage Booster December 1998 LED Indication For 12V SLA Charger December 1998 Speed Alarm & Digital Speedometer December 1998 9V Battery Checker January 1999 Timed Audible Alarm January 1999 Balanced Input & Bridging Module January 1999 PC Stake Crimper January 1999 Low Current Shunt Regulator January 1999 24V Output For Trickle Charger February 1999 (Ref Project October 1998) Timed Audible Alarm February 1999 Temperature Controlled Fan For Power Amplifiers February 1999 Bedside Lamp/Tape Recorder Timer February 1999 Optical Pickup For 5-Digit Tachometer March 1999 (Ref Project October 1997) PC-Controlled LED Matrix Display March 1999 12V Charge Indicator March 1999 Solid State Relay Circuit March 1999 Using The LED Ammeter On 24V March 1999 (Ref Project January 1999) Simple Alarm Circuit March 1999 You Have Mail In Your Letterbox April 1999 Relax Your Brain With Just Two LEDs April 1999 Random LED Flasher April 1999 9V Battery Monitor April 1999 Simple Tester Checks Transistors & Continuity April 1999 Add Bass Harmony To A Guitar May 1999 Add Remote Control To An Old VCR May 1999 Low Frequency RF Preamplifier May 1999 Simpler Metering Circuit For Capacitance Meter May 1999 (refer Project February 1999) Logic Probe With 7-Segment Display June 1999 & ETB Bistable Motor Switch June 1999 PC-Controlled Function Generator June 1999 Extra Reversing Light For Older Cars June 1999 DTMF Decoder And 1Hz Timebase July 1999 Auto Nicad Charger With Float July 1999 Rev Limiter Modification For Points Distributors July 1999 (refer Project April 1999) Mains Powered Remote Control Tester July 1999 Simple 3-Digit Frequency Counter August 1999 Burglar Alarm For Continuous Security August 1999 One Chip Audio Preamplifier August 1999 Dry Cell Battery Checking September 1999 Foolproof Audio Compressor September 1999 Surveillance Lights With Buzzer (Errata: Oct 99) September 1999 Audio Distribution Amplifier October 1999 Automotive Fuse Monitor October 1999 Low Cost SLA Battery Charger October 1999 18W Fluorescent Light Inverter Uses Ferrite Rod October 1999 Refinements To The PC Monitor Checker (refers November 1999 project August 1999) (Errata: February 2000) Simple Christmas Light Tester November 1999 Simple Lights-On Warning November 1999 Negative Line Switching For Daytime Lights November 1999 For Cars (refer Project August 1999) Reverse Battery Protection With Low Voltage Drop December 1999 Power-On Muting For PC FM Tuner December 1999 (refer Project June 1999) Backup Battery For AC-Powered Cordless Phones December 1999 Battery Charging From A 1V Or 2V Solar Panel January 2000 TTL Decision Maker January 2000 Paralleling The Output Of 3-Terminal Regulators January 2000 Buffered Virtual Ground Generator January 2000 Using A Photo-Interrupter As A Train Detector February 2000 Monitor For 12V SLA Batteries February 2000 How To Cut Clean Holes In Plastic Front Panels February 2000 12V Fan Controller For Lower Noise February 2000 Constant Current Load For Power Supply Testing February 2000 PC Printer Port Controls I-V Curve Tracer March 2000 Adding LED Indication To 12V Trickle Charger June 2000 (refer Project October 1998) Speed Controller For 240VAC Universal (Brush- June 2000 Type) Motors Low-Cost Logic Indicator For PICs June 2000 4-Wire Milliohm Tester For DMMs July 2000 Constant Voltage Charger Uses LM317 July 2000 Fine & Coarse Power Supply Control July 2000 Soldering Iron Time-Out August 2000 Split Supply With Low Quiescent Current August 2000 Off-Hook Indicator Has Better Visibility August 2000 (refer Project January 2000) Mains Power For Battery-Operated Clock August 2000 Improved Engine Immobiliser Uses SCR September 2000 A Really Simple Transistor Tester September 2000 Adding A Timer To The NiCd Discharger September 2000 Different Colours From A Green LED September 2000 Opto-Electronic Version Of High Energy Ignition October 2000 (refer Project June 1998) (Errata: November 2000) Water Level Indicator November 2000 Do-It-Yourself Car Battery Charger November 2000 Hi/Lo Pulse Indicator Uses A 7-Segment Display November 2000 Multi-Station Intercom Uses CB Microphones December 2000 (refer projects Champ Feb 94 & Pre-Champ July 94) Solar-Charged Battery Regulator December 2000 Model Aeroplane Navigation Strobe/Battery Level January 2001 Indicator Economy Mic Preamp Has Phantom Power March 2001 Shaft Rotation Indicator March 2001 (refer Speed Alarm, November & December 1999) Metering Circuit For Sine/Square Generator May 2001 (refer project February 2000) Crystal Timebase For Capacitance Meter May 2001 (refer project May 1990) Convert A Momentary Pushbutton To Alternate June 2001 Action Precision Voltage Calibrator June 2001 Running A LED From 240VAC June 2001 Computer Controlled Chaser June 2001 Vibrating VU Meter August 2001 Digital Trainer Using 4000 Series Chips August 2001 Thermistor Addition For Heat Controller August 2001 (refer project July 1998) Switchable Output Crystal Oscillator September 2001 Low Ohms Adaptor For DMMs Based On September 2001 An LM317 Regulator (Errata: December 2001) LED Number Display Uses Parellel Port September 2001 (Errata: November 2001) Sound Source Locator Uses PreChamp October 2001 (Refer project July 1994) Building A Synchronous Clock October 2001 (Errata: November 2001) Blown Fuse Indicator October 2001 Alternative Circuit For A White LED Torch November 2001 (Refer project December 2000) Central Locking Interface November 2001 Temperature-Controlled Soldering Iron November 2001 Using A LED As A Light Sensor November 2001 Analog & Digital Modulation For Laser Pointers December 2001 Measuring The Current Drain Of Devices With December 2001 DC-DC Converters Regulator For Solar Battery Charger January 2002 Simple Time Switch For Battery-Operated Projects January 2002 Door Monitor For A Dog January 2002 Electric Field Proximity Switch January 2002 White LED Torch Circuit Uses Flash Parts January 2002 (Ref Project December 2000) NTSC-PAL TV Signal Identifier February 2002 Grand Prix Starting Lights February 2002 Tracking Down Scratchy Pots February 2002 Low Cost Battery Condition Indicator February 2002 Heart Rate Monitor February 2002 Pump Controller For Solar Hot Water System March 2002 Battery Equality Monitor March 2002 Component & Voltage Tester March 2002 Solar Battery Protector April 2002 Radio Controlled Electronic Flash April 2002 Luminescent Generator April 2002 Neon Flasher Runs From 3V Supply April 2002 Isolation For PC Boards In Cars April 2002 Protection For White LED In Torch May 2002 (Refer Project December 2000) Relative Field Strength Meter For A DMM May 2002 Constant Current LED Drive May 2002 Loudspeaker Protector Monitors Current June 2002 Modification To Smoke Alarm (ref Jan/Feb 97) June 2002 Body Charge Detector June 2002 Preamp Stage For Ceramic Phono Cartridge Or June 2002 Violin Pickups Cheap AC Current Measurement July 2002 Low-Cost Dual Power Supply July 2002 Quick Counter For Young Children July 2002 Switchmode Constant Current Source July 2002 Passive RIAA Preamplifier July 2002 Up/Down Timer For A Power Antenna July 2002 Soldering Iron Tip Preserver August 2002 TV Relative Signal Strength Meter August 2002 Simple Card Access Control System August 2002 Petrol/Gas Switch For A Pajero August 2002 Ultra Low Drop Linear Voltage Regulator September 2002 Simple Logic Probe September 2002 12V Car Battery Charger September 2002 Battery Tester For Deaf-Blind Persons September 2002 Awaken The Deaf (Loud Alarm For Clocks) September 2002 DC Automotive Tester With Current Probe October 2002 Winter Charge Booster For 12V Car Batteries October 2002 Triple-LED Version Of Torch October 2002 (Ref Project December 2000, Notebook January 2002 and May 2002) One Of Nine Sequencer October 2002 Headlight Controller For Motor Bikes October 2002 Touch Enabled Fuel Cut-Off For Diesels October 2002 Simple AM Transmitter Uses Crystal Ear Piece October 2002 As Microphone Battery Status Indicator October 2002 Smoke Alarm Battery Life Extender October 2002 Speaker-Headphone Switch For PCs November 2002 Simple Cat.5 Network Tester November 2002 Using AC For LED Christmas Lights November 2002 DC Motor Speed Controller November 2002 Short Circuit Protection For Balanced November 2002 Supply Rails Table Reminder Uses Watch Module November 2002 Traffic Lights For Model Cars Or Railways December 2002 LED Torch Uses Blocking Oscillator December 2002 AFX Slot Car Lap Counter December 2002 Simple BFO Metal Locator December 2002 Capacitor Leakage Adapter For DMMs December 2002 (Errata: February 2003) Simple AM Radio Receiver December 2002 Motor Speed Control With Protection January 2003 Magic Wand For 3-Way Control January 2003 Automatic Tape Control For Display Stand January 2003 Filter Reduces Supply Ripple By 40dB January 2003 12V Lead Acid Battery Desulphator February 2003 Low Supply Rail Detection Circuit February 2003 Fifth Channel For Code-Hopping Remote Control February 2003 (Refer Project July 2002) Simple Headlight Reminders February 2003 In-Situ Battery Test Probe February 2003 Automatically Armed Engine Immobiliser February 2003 Automatic Headlight Switch March 2003 Simple Universal PIC Programmer March 2003 Bat Detector Picks Up Ultrasound March 2003 Junkbox-Parts Oven Timer March 2003 Super-Regenerative Receiver For AM & FM April 2003 Neon Scintillator With 300V Up-Converter April 2003 LED Carnival Game April 2003 Low Cost Pistol Shooting Game April 2003 Simple SLA Battery Charger April 2003 Single Entrance Vehicle Counter May 2003 Test Interface For PC Soundcards May 2003 (refer project August 2002) White LED Torch Driver Circuit May 2003 Adding Outlets To An Irrigation Controller May 2003 Computer Data Cable Tester June 2003 Inductive Speed Sensor For Cars June 2003 Digital Thermometer With LCD Readout June 2003 Low Battery Indicator June 2003 555 Timer Circuit With Variable On/Off Times June 2003 High Current Battery Discharger June 2003 High Current Low-Dropout Regulator June 2003 Infrared Remote Receiver Has Four Outputs July 2003 Wide-Range Inductance Meter July 2003 Simple Circuit Charges Up To 12 NiCds July 2003 Simple Knock Alarm With Piezo Sensor July 2003 Gym Agility: A Simple Strategy Game July 2003 Adding A 100V Line Transformer To The SC480 July 2003 Amplifier (Errata: page 59 August 2003) (Ref Project Jan/Feb 2003) Low-Cost Dual Digital Dice August 2003 Maximum/Minimum Voltage Indicator August 2003 Halogen Lamp Dimmer With Soft Start August 2003 "Safe" Oscillator For Watch Crystals September 2003 Internal Resistance Tester For Batteries September 2003 Pendulum-Controlled Clock September 2003 Super Light Sensor Circuit September 2003 LED Lighting For Dual-Filament Lamps September 2003 (Ref LED Lighting For Your Car Project, March 03) Interactive Toy Traffic Lights October 2003 Multipurpose Flipflop Timer October 2003 Automatic White-LED Garden Light October 2003 PICAXE-Based Bicycle Odometer October 2003 Making The Flexitimer Cycle On And Off November 2003 (Ref EA Project March 1991) Low Battery Indicator November 2003 Simple 9-Way Cable Identifier November 2003 Clipping Indicator For Audio Amplifiers November 2003 8V DC Supply With Overvoltage Protection November 2003 Cheap Switchmode DC-DC Converter November 2003 Simple 6-Input Alarm Circuit December 2003 Courtesy Light Extender December 2003 Battery Replacement Power Supply December 2003 Automatic Headlight Reminder December 2003 Speed Alarm For Cars December 2003 Low Cost Burglar Alarm For Boats January 2004 Remote Alarm For Smoke Detector January 2004 Yes-No Indicator Has Zero Standby Current January 2004 Battery Charger Regulator January 2004 Video Tracer For Trouble Shooting January 2004 Cable Tester Uses Quad Latch February 2004 Phantom Supply For Lapel Microphone Adaptor February 2004 (Refer Project January 2004) Frequency Multiplier For LF Measurements February 2004 LED Chaser Provides Three Game Functions February 2004 Signal Meter For Weather Satellite Receiver March 2004 (Refer Project December 2003) Car Battery Failure Detector March 2004 Switch Timer For Bathroom Light March 2004 Model Theatre Lighting Dimmer March 2004 Fully Adjustable Power Supply March 2004 4-Wire Stepper Motor Driver March 2004 (Refer Project May 2002) (Errata: February 2005) Curve Tracer Adaptor April 2004 Logic Probe With Sound April 2004 7.2V Battery Replacement For Camcorders April 2004 Stroboscope Uses White LEDs April 2004 Exit Sign With Battery Protection May 2004 One ADSL Filter Serves Several Phones May 2004 PICAXE-Based Home Security Project May 2004 PICAXE-Based Car Speed Alarm May 2004 Low-Cost Low-Intensity Alarm May 2004 Voice Bandwidth Filter June 2004 El-Cheapo Fluoro Ballast June 2004 Surveillance Camera Recorder June 2004 Experimental Pendulum Clock June 2004 Handy Time Delay With Relay Output June 2004 Using Dr Video Mk2 To Process NTSC Video July 2004 (Refer project June 2004) Room Recorder (Simple Microphone Preamp) July 2004 An Accurate Reaction Timer July 2004 PICAXE-Based Cable Tester July 2004 How To Connect Two PCs Using Modems July 2004 PICAXE Code Stops False Triggering July 2004 Stepper Motor Controller July 2004 Electronic Conjuring Trick August 2004 Adding An RGB Flag Output To The Component August 2004 Video/RGB Converter (Refer project May 2004) Keypad Decimal Encoder August 2004 PICAXE-Controlled Solar Fountain August 2004 USB-Powered PIC Programmer September 2004 Economical Desk Lamp For Camping September 2004 Quartz Clock Flasher Protects Equipment September 2004 Two Switches Share One Pin September 2004 Multi-Level Lock System September 2004 PICAXE-Controlled Battery Charger September 2004 (Errata: January 2005, March 2005) Light-Controlled Pond Pump October 2004 Bike Battery Charger October 2004 6-Station Sprinkler Controller October 2004 4-Channel Oscilloscope Adapter October 2004 Low-Coolant Alarm For Falcon EF & EL Models November 2004 One-Second Darkroom Ticker November 2004 Simple PC Power-Up November 2004 Micro Timer With LED Readout November 2004 Water Pump Monitor November 2004 Reducing The Effective Mains Voltage November 2004 Simple Combination Lock December 2004 Bare Bones ESR Tester December 2004 Ultrasonic Rangefinder For Robots December 2004 Festive Doorbell December 2004 Junk Box Fan Speed Controller December 2004 Lithium-Polymer Peak Charger January 2005 Efficient Fan Speed Controller January 2005 Simple White Noise Generator January 2005 PICAXE-Based Toy Traffic Lights January 2005 With Battery Saver 12V Halogen Dimmer January 2005 Laser Guided Parking Aid February 2005 Novel White LED Torch February 2005 Electronic Thermostat For Plug-In Heaters February 2005 ESR & Low Resistance Test Meter February 2005 Headlight Reminder March 2005 El Cheapo Cable Tester March 2005 Aviation Intercom March 2005 Touch Lamp Remote March 2005 Simple Under-Voltage Cut-Out March 2005 Reverse Polarity Protector March 2005 PICAXE Freezer Thermostat March 2005 (Errata: May 2005) Automatic Security Lights April 2005 Op Amp Auto-Zero April 2005 Synthetic Floating Negative Inductor April 2005 Plugpack Checker April 2005 Automatic Bathroom Exhaust Fan May 2005 Your Probing Questions Answered May 2005 (Meter Probe Extensions) (Errata: August 2005) Automotive LED Timing Light May 2005 Low-Voltage Cutout For 12V SLA Batteries May 2005 Solar Hot Water Controller June 2005 Two Basic Motor Speed Controllers June 2005 Op Amp Building Blocks June 2005 Simple Infrared Remote Control Extender July 2005 Improved Stability For Dr Video (Ref June 2004) July 2005 Cordless Drill Auto-Charger July 2005 RGB To Component Video Converter Fix July 2005 (Ref project October 2004) Using A Transistor As A High-Power Zener July 2005 Low-Voltage Remote Mains Switch July 2005 Vertical Sync For The Component Video August 2005 To RGB Converter (Ref project May 2004) LED Noughts & Crosses August 2005 Audio Level Threshold Control August 2005 Cheap Pump Controller August 2005 DC-DC Converter Powers USB August 2005 (Ref project March 2004) Antenna Input & Audio Line-Out Adaptor For September 2005 Portable Radios Automatic Alternate Motor Switch September 2005 (Errata: October 2005) Filter For "Ripple Control" Mains Tones September 2005 (Errata: October 2005 - WARNING! DO NOT USE CIRCUIT) PICAXE RGB LED Display September 2005 (see also Circuit Notebook, June 2006) Morse Code Practice Oscillator September 2005 Discrete Dual-Tracking Power Supply October 2005 PICAXE-Controlled Bird Brooder October 2005 Electronic Nim Game October 2005 Trickle Charge Uses Optocoupler October 2005 1W LED Driver Circuit November 2005 Simple Cable Tester November 2005 Improved LED Torch November 2005 Load Sharing Multiple Supplies November 2005 Paraphase Tone Control November 2005 Solar Hot Water Differential Pump Controller December 2005 The Mystery Swinger December 2005 Clap Controlled Switch December 2005 Winch Controller For Boaties & 4Wders January 2006 Pushbutton Relay Selector January 2006 Dual Input-Combining Stereo Line Amplifier January 2006 Battery Desulphation Progress Monitor January 2006 Nicad Charger Uses Voltage Cut-Out January 2006 Morse Code Identification Unit February 2006 Automatic Soldering Iron Controller February 2006 Improved Speed Alarm Sensor February 2006 (Refer Project November/December 1999) Steam & Diesel Loco Sounds March 2006 Long Life Lamp Beacon March 2006 Accurate Milliohm Meter March 2006 Sensitive Over-Current Protector March 2006 Delay Circuit For Power Windows March 2006 Versatile Electronic Load March 2006 4-20mA Current Loop Tester April 2006 "Beer-O-Magic" Temperature Controller April 2006 (Errata: September 2006) Improved Automatic Exhaust Fan May 2006 A Rotary Encoder For Your PIC Project May 2006 Tank To Cistern Pump May 2006 PICAXE-Powered Pocket Timer May 2006 Miniature LED Torch Bulbs May 2006 PICAXE Drives Nokia LCD June 2006 Improved PICAXE RGB LED Display June 2006 (refer Circuit Notebook, September 2005) Low-Coolant Alarm For EA-ED Falcons June 2006 Mains Frequency Monitor (Errata: February 2007) July 2006 RC Phase-Shift Oscillator July 2006 Add Tick 'N' Tock To A Quartz Clock July 2006 Simple Judging System For Photography Clubs July 2006 Infrared Remote Extender August 2006 PICAXE Battery Protector August 2006 Mains-Derived Timebase August 2006 Automatic Daytime Running Lights August 2006 (Errata: September 2006) Cheap 1W Luxeon LED Driver August 2006 Improved Delay Circuit For Power Windows September 2006 Protected 12V Automotive Supply September 2006 Reliable 4-Channel RF Switch September 2006 Expandable 2-Digit LED Counter September 2006 Cheap, Reliable LED Torch September 2006 Battery Capacitor Tester October 2006 Temporarily Silencing A Smoke Detector October 2006 (Refer Project February 1996) Cheapskate's Headset Adapter October 2006 Reservoir Pump Controller October 2006 Wiegand Decoder November 2006 Electronic Combination Lock November 2006 Model Train Detector November 2006 PICAXE To LCD Interface November 2006 PICAXE-Controlled Yoghurt Maker November 2006 Mains Zero-Crossing Recovery December 2006 Improved Vibrating Battery Tester December 2006 CB Radio Beeper With Selectable Tones December 2006 Inexpensive Remote Watering System December 2006 DRM Down-Converter For 455kHz IF Receivers January 2007 Mechanical Soldering Iron Timer January 2007 Toslink Splitter January 2007 Telephone Intercom Offers Privacy January 2007 Versatile Multi-Driver Speaker Connections January 2007 3-Digit LED Stopwatch (Errata: February 2007) January 2007 PICAXE 4-Channel RF Remote Switch February 2007 Sinewave-To-Digital Clock Shaper February 2007 Tachometer & Elapsed Time Accumulator February 2007 PICAXE-Controlled MP3 Doorbell February 2007 12/24V Auxiliary Power System March 2007 Portable Headphone Amplifier March 2007 Preamplifier For Moving Coil Magnetic Cartridges March 2007 (refer project August 2006) Odd/Even Day Watering Solution March 2007 Fun With Flashing LEDs March 2007 LCD Clock Battery Upgrade March 2007 Optical Water Level Switch April 2007 12V SLA Battery Capacity Tester April 2007 Rotary Encoder Interface April 2007 Measuring High-Q Inductors April 2007 Stage Microphone Muting Circuit April 2007 LED Pattern Flasher May 2007 IR Remote Control Tester With Audible Output May 2007 Slave Flash Trigger For Digital Cameras May 2007 Low-Dropout Voltage Regulator For Battery May 2007 Equipment Using A Stereo Amplifier As A 3-Input Guitar May 2007 Amplifier 2-Channel Background Sounds For Model Railways May 2007 Simple Battery Isolator June 2007 Using The PICAXE In SPI Mode June 2007 LED Stroboscope Uses A Frequency Counter To June 2007 Measure RPM Egg Timer Uses One CMOS IC June 2007 PICAXE-Based Tank Pump Controller July 2007 Halogen Lamp Optical Pyrometer July 2007 Timer For MIG Welder July 2007 Simple DC Motor Speed Control July 2007 Make Your Own SMD Tools July 2007 Leap-Frogging LED Chaser July 2007 Traffic Indicator Works From 12V Or 24V August 2007 Airflow Detector Using A Torch Bulb August 2007 Freezer Alarm With LED Temperature Readout August 2007 PICAXE Thermostat For A 240V Heater August 2007 White LED Touch Light August 2007 MP3 Player Remote Control August 2007 Alarm Clock With Day Selector September 2007 DC-DC Converter Has Two Outputs September 2007 IR LED Used As Remote Control Checker September 2007 Battery Saver Under Micro Control September 2007 Musical Doorbell Based On A Toy Piano September 2007 Phone Call Alert For Partially Deaf September 2007 Bi-Directional Variable Speed Drive Includes October 2007 Regeneration Pea & Thimble Or 3-Card Trick October 2007 Emergency Lights Controller October 2007 Two Novel LED Flashers October 2007 Adjustable Q For Subwoofer Equaliser October 2007 PIC-Controlled SLA Battery Capacity Meter November 2007 Audio Link Via Cat.5 Cable November 2007 Simple Model Train Controller November 2007 R/C Servo Exerciser November 2007 Animation For Mobiles November 2007 Discrete Component Low Dropout Regulator November 2007 In-Car Charger & Switcher For An SLA Battery December 2007 Temperature-Controlled Fridge Fan December 2007 Simple Water Pump Controller December 2007 Low-Current Stable Clock Source December 2007 Quiz Adjudicator Has No Pushbuttons December 2007 Buck & Boost Regulator December 2007 Doorbell Circuit With Zero Standby Current December 2007 Nicad Cell Discharger January 2008 CFL Inverter Has Overload Protection January 2008 Spa Heater Control January 2008 Using The Enhanced Voice Recorder February 2008 In A Model Railway (refer project December 2007) Rechargeable Cell Logger & Discharger February 2008 Infrared Light Beam Relay February 2008 Novel Neon Flasher Has Low Current Drain February 2008 TV Field Strength Meter March 2008 Alternator Controller For Charging Deep Cycle March 2008 Batteries Emergency Light uses 3W White LED March 2008 PICAXE Light Box Countdown Timer March 2008 Impedance Bridge Measures At Three Frequencies March 2008 Simple Mosfet Tester March 2008 PC Cooling Fan Driver March 2008 Regenerative Shortwave Radio Receiver Has Audio April 2008 Limiter Timer Has Zero current After Shutdown April 2008 2-Way Active Crossover Uses Transconductance April 2008 Amplifiers Magnetic Proximity Switch April 2008 Simple 9V Battery Tester April 2008 Frequency Indicator For Generating Equipment May 2008 Constant-Current LED Navigation Lights May 2008 Optical Smoke Detector May 2008 Biased Yes Or No Circuit May 2008 24V & 6V Versions Of Battery Charge Controller May 2008 (Refer Project April 2008) Synchronous AM Detector For Improved Shortwave June 2008 Reception Photo-interrupter Bias Circuit For Electronic June 2008 Ignition Systems Infrared Close Object Detector June 2008 Meteoric LED Display June 2008 6-Digit Demonstration Counter June 2008 Simplified Headphone Adaptor June 2008 (Refer Project April 2008) PIC Capacitance Meter Measures Charging Time July 2008 Mobile Phone Can Power PICAXE Circuits July 2008 Simple Door Guard Alarm July 2008 Programming The Remote Control Codes For The CD- July 2008 ROM Playback Adaptor (Refer Project November 2007) 12V CDI For Motorbikes July 2008 Universal Ding-Dong Chime Driver July 2008 PICAXE 21 Game July 2008 Expanded Scale Voltmeter July 2008 Charging Controller For 12V Lead-Acid Batteries August 2008 Random Direction Control For Model Railways August 2008 Antenna Resonance Indicator August 2008 Balanced Supply Rails From A 12V Battery August 2008 Universal IR Remote Control Repeater August 2008 Kill Those Adverts Quickly With The Supermute September 2008 4017 Counter Tester September 2008 Water Tank Level Indicator September 2008 PICAXE-Based Star 5W LED Control Unit September 2008 A Low-Power Class-A Valve Amplifier September 2008 Sweep Frequency Generator For Audio Testing September 2008 Tester For Ultrasonic Devices October 2008 USB-Controlled Desk Lamp October 2008 Tacho Interface For Diesel Motors October 2008 Smart Pool Pump Control October 2008 PICAXE-Based Mosfet Tester October 2008 Phone Mute For PA Sound System November 2008 Converting A Linear Pot To A Log Curve November 2008 12V Inverter Runs High-Voltage Supply November 2008 Exerciser For Manual Dexterity November 2008 Squeeze Speed Control For Bosch IXO November 2008 Cordless Screwdriver Vandal-Proof Bell Button For Entry Gate November 2008 Fuzz Box For Guitars December 2008 Monitor For Pet Bed Heater December 2008 One-Button Camera Timer December 2008 VHF Aircraft Receiver With Squelch December 2008 Toy Poker Machine Is No Risk To Wallet December 2008 Battery Monitor Has Low Current Drain December 2008 Fuel Economiser Uses Strain Gauge On Accelerator January 2009 Phone Ringer With Remote Control January 2009 Solar Powered Backyard Lighting System January 2009 Crystal-Controlled Short-Wave Converter January 2009 Switchless Intercom January 2009 Model Railway Track Cleaner January 2009 Tricks With A 4017 Chaser February 2009 Low-Power Analog Computer February 2009 Loud Repeater For Traffic Indicators February 2009 Semiconductor Evaluator For Scope February 2009 Bedside Lamp Controller February 2009 Modification To Yaesu FRG7 SW Receiver March 2009 Solar-Powered Fountain Driver March 2009 Simple Circuit Measures The Temperature Of March 2009 Your Hot Water System (Errata: June 2009) Fast Clock Driver For A Model Railway Layout March 2009 USB Polarity Tester For Circuit Prototypes March 2009 Automated Water Tank Filler April 2009 Modified Flexitimer (Ref EA March 1991) April 2009 RS232C To Current Loop Converter April 2009 (See Mailbag May 2009 for modifications) Simple Counter Uses Crystal Clock As A Readout April 2009 High Side Current Monitor April 2009 Electronic Kaleidoscope April 2009 12V Regulated Inverter Supply May 2009 Solar Panel Tracker Uses LED Sensors May 2009 PICAXE-Based Solar HWS Boost Control May 2009 3-Stage Dimmer For Mountain Bike Light May 2009 Reticulation Valve Locator May 2009 Over-Voltage Protection For DC Loads May 2009 Preamplifier For Speed Controller May 2009 One-In-Five Timer June 2009 External USB Supply For iPOD Touch June 2009 Remote Control Extender For Foxtel June 2009 Electronic Mousetrap June 2009 4-20mA Current Loop Tester June 2009 Tester For Rotary Encoders June 2009 Floating Current Source June 2009 Modified Vehicle Voltage Monitor June 2009 (Refer project May 2006) 20-LED Chaser Uses SCR Flipflop June 2009 BACK ISSUES (20) "Back issues in stock can be purchased from SILICON CHIP PUBLICATIONS. Please note: the following back issues are NO LONGER AVAILABLE: 1987-1993 1995: December 1996: January, February, March, April 1997: August, September 1998: March 1999: February 2000: April 2001: October 2002: June, July 14 MODEL RAILWAY PROJECTS (1994) 20 ELECTRONIC PROJECTS FOR CARS (1995) ZOOM EFI TECH SPECIAL (1998) ELECTRONICS TESTBENCH (2000) Photostat copies of articles from unavailable issues can be ordered. ONE SHOTS (21) "14 Model Railway Projects" (1994) (14MRP): SOLD OUT "20 Electronic Projects For Cars" (1995) (20EPC): SOLD OUT "ZOOM EFI Tech Special" (1998): SOLD OUT "Computer Omnibus" (1999) "Electronics TestBench" (2000) (ETB): SOLD OUT "Electronic Projects For Cars Vol Two" (2003) "Performance Electronics For Cars" (2004) (PEC) SILICON CHIP PUBLICATIONS PTY LTD PO Box 139 Collaroy NSW 2097 AUSTRALIA Or fax (02) 9939 2648 or phone (02) 9939 3295 Email silicon@siliconchip.com.au http:\\www.siliconchip.com.au 01/06/09