EMS Pitch-To-Voltage Converter, Eight-Octave Filter Bank Two-Voltage Random Generator, Synthi Sequencer 256, Keyboard DK1 and KS, Synthi-VCS3 Mark II, Synthi-AKS Sales Pages.. London, England: Electronic Music Studios, undated.

EMS Pitch-To-Voltage Converter(with Built-In Voltage Controlled Sawtooth Oscillator and Envelope Follower (2 copies). London, England: Electronic Music Studios, undated.