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Insulated copper area below body, vias included (case drawing: https://ww2.minicircuits.com/case_style/CD542.pdf, land pattern PL-012, including GND vias (https://ww2.minicircuits.com/pcb/98-pl230.pdf Footprint for Mini-Circuits case BK377 (https://ww2.minicircuits.com/case_style/BK276.pdf Footprint for Mini-Circuits case HQ1157 (https://www.minicircuits.com/case_style/HQ1157.pdf Footprint for Mini-Circuits case BK377 (https://ww2.minicircuits.com/case_style/BK276.pdf Footprint for Mini-Circuits case HF1139 (https://ww2.minicircuits.com/case_style/HF1139.pdf) following land pattern PL-236, including GND vias (https://ww2.minicircuits.com/pcb/98-pl079.pdf Footprint for Mini-Circuits case CD542 (https://ww2.minicircuits.com/case_style/CD542.pdf) using land-pattern PL-052, including GND-vias (https://www.minicircuits.com/pcb/98-pl258.pdf Footprint for Mini-Circuits case MMM168, Land pattern PL-225, vias included, (case drawing: https://ww2.minicircuits.com/case_style/CD542.pdf, land pattern PL-176, including GND vias (https://ww2.minicircuits.com/pcb/98-pl230.pdf Footprint for mini circuit case CD542, Land pattern PL-094, pads 5 and 6 // manual step (featuring debouncing!), sequencer cascading, basic glide (for portamento), attack decay sustain release envelope generator synth module. Layout and panel are Kosmo format. * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md) How to use 7.5mm holes, not 6mm alpha pots - 9.8mm, +2mm rotary - 11.5mm, +3.5mm -- biggest by far, maybe 12.6mm? SR2511 series are 11.43? Maybe more? Distance between pcb and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nl2md-v speakON Chassis Connectors, 4 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc3fah A Series, Chassis connector Phoenix H male (A series layout), horizontal PCB mount, https://www.neutrik.com/en/product/ncj6fa-h Combo A series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, lateral right PCB mount, https://www.neutrik.com/en/product/nc3maah AA Series, 3 pole female XLR receptacle, grounding: ground contact to mating connector shell to pin1 and front panel, steel retention lug, lateral left PCB mount, https://www.neutrik.com/en/product/nc5fbv A Series, 3 pole male XLR receptacle, grounding: separate ground contact connected to shell ground, but not.

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