via this VEMIA listing
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VEMIA is Peter Forrest's auction house. He is the author of The A-Z of Analogue Synthesizer Books.
"5 x COTK modules 1 x COTK to Synthesizers.com busboard (rare and hard to find) A solid foundation for a Moog-style modular setup—just add a filter and an envelope generator.
Club Of The Knobs COTK C901ABC Oscillator MU/.com Dotcom / 5U /Moog 901 Clone
This is a Moog 901 clone from COTK The Moog 901 came out in the late 1960's .. possibly 1965 to 68 ?? It's what is called a first generation VCO. You can use this as a VCO & VCLFO (voltage controlled LFO) It's a classic, and arguably this oscillator has influenced all VCO designs..... not just of Moog, but of synth manufacturers from around the world.
901a is the controller 901b is the oscillator 901c is the output module basically moog 901s (and clones) have a lower amplitude sound that you can amplify/ slightly distort (usually with a CP3 transistor style mixer) before running them into a moog filter but with 901c output module you also get outputs in modern modular format audio level. (and you can use them as the worlds most expensive LFO i suppose)
Condition: Used, some rack rash (previous owner), small scratch on the 901A module—see photos for details.
Club of the Knobs COTK C902 VCA This is a Moog 902 VCA clone from Club of the Knobs. Its on MU/5u/Dotcom format. It does what it is supposed to do. This module is a simple transistor based voltage controlled amplifier with either linear or exponential response. But simple doesn't mean boring sounding. This is one the workhorse VCAs of SynthLand. If you are looking at this you probably know how nice it sounds. Condition: Fully functional, but the (LIN/EXP) switch has a soft feel. Given its age (10+ years), this is reflected in the price.
COTK C938 Reversible Mixer The C 938 is a reversible mixer with attenuated inputs and a master gain multiple output. It can combine both AC and DC voltages. very useful attenucerter & mixer modular utility module Module in pristine condition Power & Compatibility:
All modules have COTK power connectors. You can power them if you:
- Have a COTK busboard (included in this sale) to connect to an MU/Dotcom case
- Use a COTK system
- Have a Moon Modular case that supports COTK power connections - all COTK cables to connect to busboard are included and a dotcom cable to connecto to you dotcom case.
A solid foundation for a Moog-style modular setup—(just add a filter and an envelope generator or two)"
