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An op amp in schmidt inverter mode, maybe both 7808 and hex inverter trigger are unnecessary? Alternative: Midi -> CV Alternative: CV from something else VCF MK's Diode Ladder VCF Kassutronic's KS-20 VCA MK's VCA Everything by Hagiwo (quantizer, filters, noisemakers, etc MIDI-to-CV, either over USB or directly over 5-pin DIN (with optoisolator) What we build next? Pretty confident we do know we need to research further. Aisler - Germany; $16.04 per board with shipping for 128.5mm x 100mm, from pcbshopper OshPark - US, included just for reference. $33.20/board from pcbshopper Lion - India; $11.53 per board with shipping for 128.5mm x 100mm, from pcbshopper JLCPCB - China, included for reference. $5.89/board, from pcbshopper estimate on 02/06/2025 Digikey RED - worth looking into, mixed reviews Delete Page Deleting the.

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