Vactrol Voyages (0-CTRL, touch)

Played from the 0-CTRL as a keyboard: its clock stopped and Interrupt on, the touch plates play the notes (Pitch to 1V/OCT, Touch Gate to TRIGGER), each plate's pitch set by its Pitch knob. The Spectravox manual asks for a keyboard or a sequencer: the 0-CTRL stands in for it, its two leads are not drawn in the manual. The 0-CTRL's knobs not named here stand at their default position.

Connect the CV and GATE outputs of an external source (keyboard or sequencer) to 1V/OCT and TRIGGER. Try different SPECTRAL SHIFT positions for harmonic contours; small changes to DECAY give dramatic results. Try patching an LFO, envelope or velocity sequence into SHIFT.

Source: Spectravox manual (Moog), Presets, page 39.