Phase Distortion VCO

The 3HP CZ1 module is a phase distortion oscillator in a 3HP module.

It replicates the famous PD waveform and can make resonant sweeps without a filter.

Based on the CZ-1 chip ( it features a 1V/Octave pitch input with a 5 octave range and a peak index CV input with a range of 0.2x – 16x. Both inputs have an attenuator knob doubling as a parameter dial when the CV’s are not plugged in.

It also has a simple Gate VCA input that enables it to be used as a complete synth if you don’t have any EG and VCA modules, i.e with an analog sequencer it will perform as an acid box.

  • 40 mA +12V
  • ? mA -12V
  • ? mA 5V
  • 35 mm deep
  • Ø 1.00 (1 Votes) Average Rating

Available as an assembled Module and as a DIY project.

This Module is currently available.

$99 Price in €
Unlisted 3 HP DigitalOscillator
submitted Feb 12th 2018, 10:39 by janost | last Change Oct 25th 2018, 21:48 by modulargrid

Buy Online

These merchants probably sell this module. Huh?


Detroit ModularControl VoltageControlPerfect Circuit


Clockface Modular