Korg MS-20

Korg MS-20

The Korg MS-20 synthesizer was released in 1978. It is a two-oscillator monophonic analog synth with connections that are hard-wired but rewire-able using patch cords to change connections, much like an old-time telephone operator. It has a 36-key keyboard, an assignable modwheel, two resonant VCF filters (high-pass, low-pass, notch, and band-reject), sample-and-hold, noise generation, and a pitch/CV converter.

Noteable Users: Add N to (X), Air, Aphex Twin, Apollo 440, Astral Projection, Vince Clarke, Coldcut, Daft Punk, Die Krupps, Einstuerzende Neubauten, Front 242, Front Line Assembly, Hardfloor, Jean-Michel Jarre, KMFDM, The Legendary Pink Dots, Mr. Oizo, William Ørbit, Portishead, Prodigy, Skinny Puppy, Stereolab, and Luke Vibert.

Manual: http://www.soundprogramming.net/manuals/Korg_MS-20_Manual.pdf
Service Manual: http://www.soundprogramming.net/manuals/Korg_MS-20_ServiceManual.pdf

User-Created Demo Video (by Marc Doty):