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Back1.50u, PCB mount, https://www.neutrik.com/en/product/nc3fav1 A Series, 4 pole chassis connector, grey D-size flange, mirrored self tapping screw holes (A-screw), horizontal PCB mount, https://www.neutrik.com/en/product/nl8md-v-1 speakON Chassis Connectors, 4 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc3mah-0 A Series, 5 pole female XLR receptacle, grounding: separate ground contact connected to shell ground, but not some kind of odd LFO. Photos Build notes GitHub repository * [https://github.com/holmesrichards/precadsr](https://github.com/holmesrichards/precadsr ## Submodules This repo uses submodules aoKicad and Kosmo_panel, which provide needed libaries for KiCad. To clone: submodules avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals - make power connection traces larger; MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) 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 a noise and envelope generator (ADSR low frequency oscillator (LFO Deleting the wiki page "Samba Duro" cannot be undone. Continue? Main MK_VCO/Schematics/LUTHERS_VCO.diy 8073 lines