Available as an assembled Module and as a DIY project.
This Module is currently available.
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 (http://www.dspsynth.eu) 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.