Serge CGS panel

Edelweiss II may look like an ideal control panel, but it is also quite powerful in the audio range. Many R*S modules like the DSG mk2 and SSG have been optimized for audio performance and can be used as oscillators, filters or lowpass gates.

http://randomsource.net/serge_panels

Available as an assembled Module and as a DIY project.

This Module is currently available.