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Maplin ETI 4600 Synthesizer

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Description
This synth was a state-of-the-art design when it was conceived back in the 1970s. Designed by Trevor Marshall in 1973, this synthesiser was offered in kit form by Maplin Electronic Supplies (in the UK). The parts cost was around £500, and was said to match the performance of synthesisers costing £1500.

The white faced version is believed to be the Australian version sold under the International Muisc Synthesizers name by Jaycar PTY LTD, of Sydney Australia. .
Images

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Technical Specifications
Type: Analog, Digital
Synthesis: Subtractive
Oscillators: 4
Waveforms: Pink Noise, Pulse Variable, Saw Down, Saw Up, Sine, Square, Triangle, White Noise
Osc Modulation: Envelope, Glide / Portamento, Input, Knob, LFO, Oscillator
Envelopes: 3
Evelope Paramerters: Initional Level, Delay, Attack, Decay, Decay 2, Hold, Looping, Slope, Triggered, Time
Envelope Notes::
+ 1 x ADHD2
+ 2 x Transient Generators
Filters: 2
Types: 12dB Slope (2-pole), Band Pass, Low Pass, Resonance
LFO
LFO: 1
LFO Parameters: Sine
Polyphony & Tuning
Polyphony: 1
Timbrality: 1
Tuning: Standard
Modes: Mono
Effects
+ Reverb
+ Delay
+ EQ
Case
Case: Keyboard
Keyboard: 49 keys, Non-weighted, Plastic
Controls: Knobs, Switches, Joy Stick, Pedal - Control, Pedal - Start / Stop
Display Type: LED
Connections
Audio Output Connections: 1/4" Phone Jack, Stereo Main
Audio Output Count: 2
CV Ports: CV IN, Gate In
Power: 220V AC
Production
Year Released: 1974
Design Notes:

Designed by Trevor Marshall

At the age of 24 he had completed the complex designs of 2 music synthesisers - the ETI 4600 and the ETI 3600. Trevor designed them with the prerequisite that they had to be able to be constructed from kit form, were high quality, and were able to be assembled by any average person.

The intention was to make available to pop groups a synthesiser that would cost less than the average of around $1,400 (Australian Dollars). The magazine Electronics Today International approached Trevor and featured the design in a number of articles.

Barry Wilkinson of ETI was responsible for the packaging and kitting coordination. It was adapted for Europe by Maplin Electronic Supplies of Rayleigh, Essex who produced full construction details, and were able to supply all the components for the project including PCBs, printed panels and case.
Manuals & Documents
Patch Sheet
Repairs and Support
[+] www.chookfest.net
Pricing
MSRP List Price: £500 full parts kit - convert
Shopping
References & Sources

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