STG Soundlabs/muSonics Wave Folder - Moog format module

The Wave Folder is a nonlinear diode-based waveshaper with voltage-controllable gain and a 10-volt offset range.

It is derived from a design originally by the late Jürgen Haible, who was looking at a triangle-to-sine circuit one day and asked himself what it would sound like if he went from 4 to 20 diodes and added feedback.

Despite its name, the muSonics Wave Folder has nothing in common with similarly-named functions of California-based synthesisers. Even if you own one of those things, you're still going to want this!