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POLY555
Polyphonic, analog, square wave synth based on the 555 timer
  • Analog
  • Polyphonic
  • Kit

Very basic, yet fun concept: 20 keys control 20 timers and tuned independently. All 3D-printed parts of enclosure are published on Thingiverse.

  • Scout — another, even more basic synth from the same author.
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Oskitone
Newbe
  • +Schematic
  • +PCB
  • -BOM
  • -FW
  • +Docs
  • +Enclosure