KiCAD files for formant VCO.
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README.md

SMD Formant VCO Prototype

KiCAD files for eurorack-compatible formant-based VCO design. Mostly created just to learn KiCAD.

Video on construction/operation is here: https://www.youtube.com/watch?v=rq4ovZ2om6k

ERRATA [V1A] (To be fixed in future revision)

  • The TL071 op-amp in the CAD files is arbitrary, I actually used an LM358. Just use whatever 8-pin SOIC dual op-amp you like.
  • Diodes (D1..) are incorrect footprint. Change this to suit.
  • 10V reference chip, VCC is not connected to +V properly. This must be bridged.
  • +/-15V designator actually should be +/-12V to match eurorack. Doesn't make any electrical difference, but it's what the schematic says.
  • Be careful with tantalum capacitor orientation, check with schematic. Silkscreen 'line' is negative, not positive.