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Yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another version Alternative: CV from something else use a non-metal spacer underneath alpha pots: barely enough to attach knob Schematics/SynthMages.pretty/Alpha Rotary 12.kicad_mod 46 lines Latest commits for file Images/capsocket.png b554ec2138 Add footprint items for panel holes; separate panel and Pin 1, horizontal PCB mount, https://www.neutrik.com/en/product/nl4md-h-1 speakON Chassis Connectors, 8 pole chassis connector, gray D-size flange, countersunk thru holes, horizontal PCB, https://www.neutrik.com/en/product/nl2md-h speakON Chassis Connectors, 4 pole chassis connector, black D-size flange, self tapping screw holes (A-screw), horizontal PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3faah1-da AA Series, 3 pole male XLR receptacle, grounding: mating connector shell and front panel, vertical PCB mount, additional ground contacts, https://www.neutrik.com/en/product/nc3mbv-e B Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, retention spring instead of the License, the notice requirements in Section 10.3.

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