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roundabout3

roundabout

A small patchable synthesizer.

Tech details:

  • uses jumper wires and pin headers for patching
  • CMOS-based circuitry
  • 3 oscillators with sync and weighted CV inputs
  • 2 goofy state-variable filters
  • 2 frequency dividers
  • 2 4-bit shift registers
  • 4-bit R2R DAC
  • 2 mults and an extra buffer
  • left and right mixers with weighted inputs
  • stereo output suitable for headphones
  • powered by a 9v battery (rechargeable NiMH recommended)

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