ETI SDIY articles index

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Articles relevant to synth DIY that were published in the UK edition of the magazine Electronics Today International (ETI):

Month Year Article name Author PPNo Classification Key components Comments Corrections On Web
Apr 1973 ETI Master Mixer Not Given 66 Audio Part 1
May 1973 ETI Master Mixer Not Given 30 Audio Part 2
Jun 1973 New Sound For Your Guitar Not Given 30 Effect
Jun 1973 ETI Master Mixer Not Given 56 Audio Part 3
Jul 1973 ETI Master Mixer Not Given 63 Audio Part 4
Oct 1973 Master Mixer Modification Not Given 52 Audio
Jan 1974 International Music Synthesiser Barry Wilkinson, Trevor Marshall 20 Synth Part 1 of ETI 4600 build ETI4600
Feb 1974 International Music Synthesiser Barry Wilkinson, Trevor Marshall 24 Synth Part 2 of ETI 4600 build ETI4600
Mar 1974 International Music Synthesiser Barry Wilkinson, Trevor Marshall 40 Synth Part 3 of ETI 4600 build ETI4600
Apr 1974 International Music Synthesiser Barry Wilkinson, Trevor Marshall 44 Synth Part 4 of ETI 4600 build ETI4600
May 1974 International Music Synthesiser Barry Wilkinson, Trevor Marshall 54 Synth Part 5 of ETI 4600 build ETI4600
Jun 1974 International Music Synthesiser Barry Wilkinson, Trevor Marshall 24 Synth Part 6 of ETI 4600 build ETI4600
Jul 1974 International Music Synthesiser Barry Wilkinson, Trevor Marshall 52 Synth Part 7 of ETI 4600 build ETI4600
Aug 1974 International Music Synthesiser Barry Wilkinson, Trevor Marshall 58 Synth Part 8 of ETI 4600 build ETI4600
Aug 1974 BBC Radiophonic Workshop Not given 18 History
Sep 1974 International Music Synthesiser Barry Wilkinson, Trevor Marshall 48 Synth Part 9 of ETI 4600 build ETI4600
Dec 1974 Spring Reverberation Unit Not given 46 Effect
Feb 1975 Tech Tip: Simple Waa-Waa Circuit Not given 66 Effect
Mar 1975 Using the LM3900 Not given 29 Information
May 1975 ETI 3600 Synthesiser Not given 42 Synth Part 1 of 4
Jun 1975 ETI 3600 Synthesiser Not given 32 Synth Part 2 of 4
Jun 1975 Tech Tip: Pink Noise Generator Not given 62 Effect
Jul 1975 Stage Mixer Not given 26 Audio Part 1 of 2
Jul 1975 ETI 3600 Synthesiser Not given 54 Synth Part 3 of 4
Sep 1975 Stage Mixer Not given 33 Audio Part 2 of 2
Oct 1975 ETI 3600 Synthesiser Not given 41 Synth Part 4 of 4
Feb 1976 Datasheet: AY-1-0212 & AY-1-5051 Not given 66 Data sheet
Jun 1976 Waa-Waa Unit Not given 16 Effect
Dec 1976 Touch Organ Not given 41 Organ Capacitive Touch Keys
Dec 1976 Audio Phaser Not given 29 Effect
Dec 1976 Tech Tip: Guitar Fuzz Not given 83 Effect
Apr 1977 Fuzz Box Not given 48 Effect
May 1977 Datasheet: TDA1022 Not given 49 Data sheet
Jul 1977 Active Filters Tim Orr 23 Information Part 1
Jul 1977 Datasheet: ICL8038 Not given 50 Data sheet
Jul 1977 Tech Tip: A Simple VCO Not given 77 Synth
Aug 1977 Active Filters Tim Orr 36 Information Part 2 American Radio History
Aug 1977 Vocoders! Not given 34 Information American Radio History
Sep 1977 Active Filters Tim Orr 52 Information Part 3
Sep 1977 Graphic Equaliser Not given 27 Audio
Oct 1977 Datasheet: NE570/NE571 Not given 59 Data sheet American Radio History
Nov 1977 Tech Tip: Organ Divider Not given 73 Organ Related to Touch Organ (Dec 76) American Radio History
Feb 1978 Tech Tip: Sample and Hold for Music Synthesisers L. Robinson 84 Synth
Feb 1978 Tech Tip: Battery Operated VCO R. Zaman 91 Synth
Feb 1978 Op Amps Tim Orr 22 Information Part 1
Mar 1978 Op Amps Tim Orr 49 Information Part 2 American Radio History
Apr 1978 Op Amps Tim Orr 29 Information Part 3 American Radio History
May 1978 Op Amps Tim Orr 69 Information Part 4 American Radio History
May 1978 CCD Phaser David Vorhaus 57 Effect TDA1022 American Radio History
Jun 1978 Spectrum Analyser Tim Orr 27 Audio American Radio History
Jul 1978 Designing Oscillators Tim Orr 15 Information American Radio History
Jul 1978 Music Synthesiser Tim Orr 38 Synth Part 1 of Transcendent 2000 CAG, EmusicDIY, American Radio History
Aug 1978 Music Synthesiser Tim Orr 45 Synth Part 2 of Transcendent 2000 CAG, EmusicDIY, American Radio History
Oct 1978 Complex Sound Generator Not given 17 Synth SN76477 CAG, American Radio History
Nov 1978 Autochord Not given 56 Organ Part 1 American Radio History
Nov 1978 Tech Tip: Guitar Sustain Unit S. D. Maistre 91 Effect American Radio History
Dec 1978 Autochord Not given 80 Organ Part 2 American Radio History
Jan 1979 Log-Exponential Converter Not given 34 Synth Novel Oven for temp stability American Radio History
Feb 1979 100W Disco Mixer Amplifier Richard Becker 64 Amplifier Powertran MPA 200 CAG
Feb 1979 Tech Tip: Simple Wide Range VCO A. J. Richardson 87 Synth
Apr 1979 Ten 3080 Circuits Tim Orr 70 Information
Apr 1979 Guitar Effects Unit Not given 97 Effect
May 1979 Datasheet: TDA1008 Not given 70 Data sheet
May 1979 Headphone Amplifier Not given 77 Amplifier
Jul 1979 Polyphonic Keyboard Tim Orr 36 Synth CAG
Aug 1979 Transcendent DPX Tim Orr 18 Synth BF244C, SAD512D Part 1 of A String Thing CAG
Sep 1979 Transcendent DPX Tim Orr 62 Synth NE566, M086 Part 2 of A String Thing CAG
Sep 1979 Tech Tip: Voltage Controlled Filter T. W, Stride 95 Synth
Oct 1979 Transcendent DPX Tim Orr 35 Synth BF244B, CA3080 Part 3 of A String Thing CAG
Oct 1979 High Quality Audio Amplifier Not given 55 Amplifier
Nov 1979 Transcendent DPX Tim Orr 64 Synth 75107, MC6810L, ZN425SE Part 4 of A String Thing CAG
Nov 1979 Analogue Delay Lines Tim Orr 29 Information
Nov 1979 Tech Tip: Simple Rhythm Generator J. J. Trinder 101 Synth Basic Sequencer
Dec 1979 Random Noise Source Not given 67 Synth
Dec 1979 Tech Tip: A Simple Sequencer P. Hill 109 Synth
Jan 1980 Tech Tip: A Simple Sequencer S. Giles 101 Synth
Feb 1980 Modular Synthesiser R. C. Blakey 62 Synth Project 80 Digisound80, SynthDIY.com
Feb 1980 Modular Synthesiser R. C. Blakey 67 Synth CA3080E, CEM3340 Project 80 Digisound80
Feb 1980 Tuning Fork Not given 79 Test equipment
Feb 1980 Tech Tip: Stereo VCA J. Macauley 97 Synth
Mar 1980 The 1537 VCA Keith Brindley 30 Information
Mar 1980 Voltage Controlled Mixer Not given 87 Synth CEM3330 Project 80 Digisound80, SynthDIY.com
Apr 1980 Analogue Switches Tim Orr 18 Information
Apr 1980 300W Amplifier Module Not given 58 Amplifier
Apr 1980 Tech Tip: Transcendent 2000 Preamp R. N. Johnson 89 Synth
May 1980 Project 80 filters Chris Blakey 20 Synth CEM3320 Project 80 Digisound80
May 1980 The Black Hole Tim Orr 90 Effect SAD512D Chorus Machine CAG
Jun 1980 Drum Synthesiser Roger Shore 84 Synth ICL8038
Jun 1980 Tech Tip: 555 Voltage Control S. Draper 97 Synth
Jun 1980 Tech Tip: 16 Note Sequencer P. Gatehouse 99 Synth
Jul 1980 Filter Design Tim Orr 17 Information
Jul 1980 State Variable Filter R. C. Blakey 84 Synth SSM2040 Project 80 Digisound80
Jul 1980 Envelope Shaper R. C. Blakey 88 Synth CEM3310 Project 80 Digisound80
Aug 1980 100W Power Amplifier Not given 64 Amplifier
Aug 1980 Dual VCA R. C. Blakey 78 Synth CEM3330 Project 80 Digisound80
Sep 1980 Vocoder Richard Becker 58 Synth Part 1 of 2 CAG
Sep 1980 Envelope Shaper R. C. Blakey 93 Synth CEM3310 Project 80 Digisound80
Oct 1980 Spot Design: Reverberation Unit Not given 25 Effect
Oct 1980 Vocoder Richard Becker 40 Synth Part 2 of 2 CAG
Oct 1980 Sustain Fuzz Box Not given 53 Effect
Oct 1980 Monitor Amplifier Chris Blakey 79 Synth TDA2030H Project 80 Digisound80
Nov 1980 Spot Design: Waa-Waa Unit Not given 61 Effect
Nov 1980 2W Power Amplifier Keith Brindley 72 Amplifier
Dec 1980 Four Input Mixer John Fitzgerald 19 Audio
Dec 1980 Bandpass and Beyond Tim Orr 25 Information
Dec 1980 Polysynth Tim Orr 87 Synth 2102, 6810 Part 1 CAG
Jan 1981 Polysynth Tim Orr 77 Synth 2102, 6810, LM13600 Part 2 CAG
Feb 1981 Polysynth Tim Orr 32 Synth CA3080, CEM3310, CEM3340, LM13600 Part 3 CAG
Feb 1981 Sound Pressure Level Meter Not given 74 Test equipment 2N3819
Mar 1981 Polysynth Tim Orr 27 Synth Part 4 CAG
Apr 1981 Noise Generator Charles Blakey 59 Synth Project 80 Digisound80
Apr 1981 Drum Machine Ray Marston 75 Synth
Apr 1981 Guitar Note Expander Q. A. Rice 95 Effect CAG
Apr 1981 Tech Tip: Joystick Control M. Swale 36 Synth ETI 4600
Apr 1981 Tech Tip: Transcendent Pulse Wave Improvement J. F. Jordan 37 Synth Transcendent 2000
Apr 1981 Spot Design: 20W MOSFET Amplifier Not given 88 Amplifier
May 1981 Synthesiser Sequencer Richard Becker 36 Synth DM8130, ADC0804, DAC0808, 2x6514 CAG, Neil Johnson
May 1981 Spot Design: Guitar Treble Boost Not given 77 Effect
May 1981 Tech Tip: 555 VCO J. Harrold 94 Synth
May 1981 Tech Tip: Computer-controlled Synthesiser Keyboard P.McChesney 94 Synth
Jun 1981 Waa-Phase Unit Ray Marston 24 Effect CAG
Jun 1981 Tech Tip: Transposing Master Tone Generator R. Basterfield 54 Organ
Jun 1981 Tech Tip: Synthesiser Interface For Transcendent DPX D. Pallant 56 Synth
Aug 1981 Hand Clap Synthesiser Roger Shore 68 Synth
Aug 1981 Tech Tip: Computer-controlled Synthesiser Keyboard K. Wood 81 Synth
Aug 1981 Tech Tip: Duophonic Synthesiser Keyboard P. R. Williams 83 Synth Transcendent 2000
Sep 1981 Equaliser Circuit Design Tim Orr 71 Information
Oct 1981 Sound Bender Ray Marston 24 Effect Ring Modulator
Nov 1981 Music Processor Ray Marston 38 Effect TDA1022
Dec 1981 Tech Tip: Active 'Stereo' Bass Guitar J. Smalley 75 Effect
Jan 1982 Guitar Tuner Brian Brooks 41 Test equipment
Mar 1982 Facts on DAC's and ADC's Tim Orr 19 Information
Apr 1982 Electromusic Techniques Tim Orr 17 Information Part 1
Apr 1982 Solid State Reverb Charles Blakey 101 Effect MN3011/3101 SynthDIY.com, Digisound80
May 1982 Electromusic Techniques Tim Orr 47 Information Part 2
May 1982 Tech Tip: Economy CMOS Vocoder S. P. Giles 60 Synth
May 1982 Tech Tip: Guitar Tracking Oscillator S. P. Giles 61 Effect
Jun 1982 Electromusic Techniques Tim Orr 59 Information Part 3
Jun 1982 Tech Tip: Solid StateScope Using LED's G. Durant 27 Test equipment
Jul 1982 Tech Tip: CMOS Sustainer for Electric Guitars S. P. Giles 27 Effect
Jul 1982 Playmate Guitar Effects/Amp Phil Walker 28 Effect Part 1 of 2
Aug 1982 Tech Tip: Guitar Harmoniser S. P. Giles 34 Effect
Aug 1982 Tech Tip: CMOS Phaser S. P. Giles 35 Effect
Sep 1982 Playmate Guitar Effects/Amp Phil Walker 16 Effect Part 2 of 2
Sep 1982 Tech Tip: Cheap Auto-Waa Tony Allgood 22 Effect
Sep 1982 Tech Tip: CMOS Fuzz/Tremelo S. P. Giles 23 Effect
Oct 1982 Tech Tip: Enriching Synthesiser Sounds H. Duncan 77 Synth
Nov 1982 Tech Tip: Switched Volume Guitar E. D. Pearson 85 Effect
Dec 1982 Tech Tip: Computer/Synth Keyboard Interface Philip Jones 93 Synth
Jan 1983 Waveform Multiplier David Ward-Hunt 71 Synth Neil Johnson, Digisound80
Feb 1983 The ETI Organ Richard Watts 19 Organ Part 1
Mar 1983 The ETI Organ Richard Watts 36 Organ Part 2
Apr 1983 The ETI Organ Richard Watts 56 Organ Part 3
May 1983 The ETI Organ Richard Watts 67 Organ Part 4
May 1983 Tech Tip: Electronic Guitar Quentin Rice 74 Effect
Jun 1983 Data Sheet: M108/M208 Not given 71 Data sheet Neil Johnson
Aug 1983 1/3 Octave Graphic Equaliser David Tilbrook 18 Audio Part 1
Sep 1983 1/3 Octave Graphic Equaliser David Tilbrook 41 Audio Part 2
Nov 1983 Mini Drum Synth A. G. Atkins 36 Synth
Nov 1983 Tech Tip: Active Bass Tone Control Ian Willats 57 Effect
Jan 1984 Chorus/Flanger Unit Tim Orr 33 Effect MN3207/3102 CAG, SynthDIY.com
Mar 1984 Tech Tip: Cheap Envelope Generator Jeff Macanley 41 Synth
May 1984 Midi Drum Synth Not given 62 Synth Not MIDI CAG
Oct 1984 Simple Echo Unit Phil Walker 18 Effect
Oct 1984 Tech Tip: A440 Tuning Reference C. Robertson 48 Test equipment
Dec 1984 Digital Delay Line Ray Lowe 16 Effect Part 1
Jan 1985 Digital Delay Line Ray Lowe 62 Effect Part 2
Feb 1985 Digital Delay Line Ray Lowe 24 Effect Part 3
Feb 1985 Paragraph Equaliser Barry Porter 31 Audio Part 1
Mar 1985 Voltage Controlled Digital Oscillator Richard Thorp 16 Synth CEM3340, DAC0800, 2716 Project 80 Digisound80
Mar 1985 Paragraph Equaliser Barry Porter 49 Audio Part 2
Apr 1985 CCD Delay Line Effects Board Phil Walker 57 Effect TDA1022/1097
Jul 1985 Noise Gate Ian Coughlan 38 Effect
Aug 1985 ETI Sorcerer String Synthesiser Graeme Durant 36 Synth Part 1 CAG
Oct 1985 ETI Sorcerer String Synthesiser Graeme Durant 32 Synth CA3080, MN3010 Part 3 CAG
Nov 1985 The Rhythm Chip Geoff Phillips 33 Synth
Nov 1985 Chorus Unit Ian Coughlan 48 Effect TDA1097 CAG
Nov 1985 Cymbal Synth D. Stone 58 Synth
Nov 1985 Digital Sound Sampler Paul Chappell 63 Synth Part 1
Dec 1985 Specdrum Drum Sequencer Digisound 41 Synth Uses a ZX Spectrum CAG
Dec 1985 DI Compression Gate Allan Bradford 46 Audio CAG
Jan 1986 The ETI Activator Allan Bradford 30 Audio
Jan 1986 Digital Sound Sampler Paul Chappell 63 Synth Part 2 – Uses a ZX Spectrum
Feb 1986 Digital Sound Sampler Paul Chappell 42 Synth ZN448 Part 3
Mar 1986 Digital Sound Sampler Paul Chappell 44 Synth Part 4
Jun 1986 MIDI To CV Convertor R. A. Penfold 29 Synth
Jun 1986 Digital Sound Sampler Paul Chappell 48 Synth Part 5
Jul 1986 Digital Sound Sampler Paul Chappell 44 Synth Part 6
Oct 1986 Audio Analyser R. A. Penfold 43 Audio May87-57
Dec 1986 Bongo Box Peter Davie 43 Synth
Dec 1986 Tech Tip: Simple Fuzz Unit Lee Sage 58 Effect
Jan 1987 The MIDI Interface Alan Robinson 17 Information
Jan 1987 The Better Flanger Ian Coughlan 47 Effect TDA1022 Feb87-63, Mar87-55
Jan 1987 The ETI LEDScope Tony Ellis 57 Test equipment
Feb 1987 The MIDI Interface Alan Robinson 31 Information
Apr 1987 BBC Micro MIDI Interface John Yua 42 MIDI Jun87-51, Jul87-51,
May 1987 MIDI Master Keyboard John Yua 27 MIDI
May 1987 Metronome Not given 44 Music
May 1987 Electronic Tuning Fork Not given 44 Test equipment
May 1987 Valve Distortion' Fuzz Box Not given 46 Effect
Jun 1987 MIDI Master Keyboard John Yua 33 MIDI Jul87-51, Aug87-57,May88-53
Jul 1987 MIDI Master Keyboard John Yua 40 MIDI
Aug 1987 MIDI Master Keyboard John Yua 32 MIDI
Sep 1987 The Hybrid Music System Malcolm Brown 24 Information
Oct 1987 Inside Hybrid's Music 5000 Chris Jordan 23 Information
Oct 1987 Hyper Fuzz Charles Dancer 43 Effect
Dec 1987 Electronic Violet Ronald Alpiar 41 Controller Part 1
Jan 1988 Music Circuit Potpourri Bruno Hewitt 20 Synth
Jan 1988 Electronic Violet Ronald Alpiar 63 Controller Part 2
Nov 1988 Tech Tips: Guitar Preshaper I. Harvey 49 Effect
Nov 1988 Tech Tips: Envelope Generator T. Allgood 51 Synth
Feb 1989 Compressor/limiter/Gate Ian Harvey 26 Effect
Mar 1989 MIDI Programmer Robert Penfold 31 MIDI
May 1989 Guitar Tuner Laurie Barron 41 Test equipment
Jun 1989 How to MIDI a Piano John Brockhurst 26 MIDI Nov89-60
Jul 1989 MIDI Patch Work Robert Penfold 41 MIDI Nov89-60
Oct 1989 MIDI Mapper Robert Penfold 53 MIDI
Dec 1989 Pedal Power Gordon Tomlinson 43 Effect
Dec 1989 Digital Noise Generator Edward Barrow 50 Synth
Jun 1990 The Fecko Box Keith Brindley 40 Effect MN3004/3101 Jul90-60
Aug 1990 SY77 Music Synthesis Mike Barnes 39 Information Part 1
Sep 1990 SY77 Music Synthesis Mike Barnes 37 Information Part 2
Nov 1990 Music Tech Tips Robert Penfold 51 Synth
Jul 1991 The Foot-Tapper Paul Stevenson 47 Effect
Mar 1992 MIDI Switch G. Parris 16 MIDI
Apr 1992 Auto-mate 20 Audio Mixing Desk Mike Meecham 22 Audio Part 1
May 1992 Auto-mate 20 Audio Mixing Desk Mike Meecham 17 Audio Part 2
Jun 1992 Auto-mate 20 Audio Mixing Desk Mike Meecham 46 Audio Part 3
Jul 1992 Auto-mate 20 Audio Mixing Desk Mike Meecham 53 Audio Part 4
Aug 1992 Auto-mate 20 Audio Mixing Desk Mike Meecham 52 Audio Part 5
Aug 1992 MIDI Keyboard Stephen Lenham 40 MIDI E510
Sep 1992 Auto-mate 20 Audio Mixing Desk Mike Meecham 60 Audio Part 6
Oct 1992 Auto-mate 20 Audio Mixing Desk Mike Meecham 38 Audio Part 7
Nov 1992 Auto-mate 20 Audio Mixing Desk Mike Meecham 24 Audio Part 7b
Dec 1992 Auto-mate 20 Audio Mixing Desk Mike Meecham 23 Audio Part 8
Jan 1993 Auto-mate 20 Audio Mixing Desk Mike Meecham 24 Audio Part 8b
Feb 1993 Sound to MIDI Processor Ken Blackwell 34 MIDI
Mar 1993 Auto-mate 20 Audio Mixing Desk Mike Meecham 49 Audio Part 10a
Apr 1993 Auto-mate 20 Mixer PPM module Mike Meecham 32 Audio Part 1
May 1993 Auto-mate 20 Mixer PPM module Mike Meecham 36 Audio Part 2
May 1993 The Fuzztone Daniel Coggins 16 Effect
June 1993 5-Band Graphic Equaliser Andrew Armstrong 12 Audio
Jun 1993 Auto-mate 20 Audio Mixing Desk Mike Meecham 39 Audio Part 11
Jul 1993 Auto-mate 20 Audio Mixing Desk Mike Meecham 48 Audio Part 12
Aug 1993 Auto-mate 20 Audio Mixing Desk Mike Meecham 40 Audio Part 13
Sep 1993 MIDI Analyser Tom Scarff 32 MIDI
Sep 1993 Auto-mate 20 Audio Mixing Desk Mike Meecham 39 Audio Part 14
Oct 1993 Auto-mate 20 Audio Mixing Desk Mike Meecham 26 Audio Part 15
Nov 1993 MIDI Change Pedal D. Sapwell 34 MIDI
Jun 1994 An Introduction to MIDI Robert Penfold 54 Information
Jun 1994 A MIDI Bass Pedal Tom Scarff 58 MIDI
Jul 1994 An Introduction to MIDI Robert Penfold 62 Information Part 2
Aug 1994 An Introduction to MIDI Robert Penfold 60 Information Part 3
Sep 1994 An Introduction to MIDI Robert Penfold 62 Information Part 4
Oct 1994 Hall Effect Swell Pedal Robert Penfold 30 Effect
Oct 1994 An Introduction to MIDI Robert Penfold 62 Information Part 5
Nov 1994 Hall Effect Wah-Wah Pedal Robert Penfold 58 Effect
Nov 1994 An Introduction to MIDI Robert Penfold 64 Information Part 6
Dec 1994 The Parabender Barry Porter 64 Audio Part 1
Jan 1995 Metal Effects Unit Robert Penfold 46 Effect
Jan 1995 The Parabender Barry Porter 50 Audio Part 2
Sep 1995 Fibre Optic MIDI Link Robert Penfold 40 MIDI
Oct 1995 16 Channel MIDI Mixer Tom Scarff 46 MIDI
Sep 1996 "Chopper" Tremolo Robert Penfold 46 Effect
Apr 1997 MIDI Controlled Voice Harmoniser Tom Scarff 28 Effect
Jan 1998 Infra-red Theramin Robert Penfold 35 Synth
Feb 1998 MIDI Drum Pads Tom Scarff 64 MIDI
Jun 1998 HT-8955 Digital Echo Robert Penfold 19 Effect
Sep 1998 Tracking Filter Effects Unit Robert Penfold 49 Effect
Sep 1998 A PC-controlled Sine Wave Generator Mark Roberts 29 Synth
Nov 1998 Circuits for Music Lovers James Scott 29 Effect

Articles relevant to SDIY that were published in the Australian edition of ETI:

Month Year Article name Author PPNo Classification Key components Comments Corrections On Web
Sep 1976 Audio Phaser Not Given 51 Effect ETI 447 PCB SynthDIY.com, CAG
Aug 1977 International 603 Sequencer Not Given 77 Synth ETI 603 PCB SynthDIY.com, CAG, EmusicDIY
Jun 1982 Sub-octave oscillator for ETI synthesizer Ken Stone Synth LM301, 4024

References

  • Compiled by Mike Gorman from the original magazines