via
this auction
"Contains one calibrated and one uncalibrated Voltage Input to the oscillator, one CV input to the VCF, one positive trigger input, one negative trigger input, and an audio output.
Single VCO with 3 waveforms, coarse and fine tuning. LFO level, rate, beat/vibrato. VCF frequency, gain, resonance. Envelope generator has attack, decay, sustain, damp. VCA triggered audio gate.
Designed by Nyle Steiner, inventor of the EVI and EWI (Electronic Valve and Wind Synthesizers)
The power supply was replaced and unit tuned two years ago by Matt Traum at Patchman Music. Replaced the old dried out rubber feet.
Works great - tested today using a Frostwave fatCONTROLLER analog sequencer and Lyricon Driver.
The only quirk is that the change in sound on the waveform switch is extremely subtle, so I'm not sure if that is intended or if the switch is dirty. Other than that everything sounds fantastic."
Additional info on
Synthmuseum.com.