The Corruptor mk III

The Corruptor is a brutal and glitchy sounding CMOS-based octave up fuzz and ring modulator designed by Fredrik Lyxzén from Parasit Studio.

It turns your signal into a square wave and modulates it against an internal oscillator. The ring modulated sound can be blended with the square wave fuzz that can be either straight fuzz or one octave up for extra insanity. It uses XOR logic gates for the ring modulation, just like the Korg MS20 synthesizer.

I built my version following this stripboard layout.