[sdiy] Resistance Controlled Synthesizer

[mike ruberto]

I just came across a really simple synthesizer design. The builder
uses different resistances to control the rate of a square wave
oscillator instead of control voltage. What a strange little
instrument...
http://www.mzentertainment.com/studio_workshop_source_one_analog_synthesizer_RCVC_sequencer.html

There's even a sequencer for it!

M. A. Ruberto