This circuit is a device which provides wonderful sonic possibilities. This module performs a non-linear transformation of a simple waveshape (triangle or sawtooth) into a complex waveform rich in overtones.

http://yusynth.net/Modular/EN/WAVEFOLDER/index.html

• 5 mA +15V
• 3 mA -15V
• 0 mA 5V

Module is available as a DIY project only.

No info about availability.