synth_tools

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H_margin; out_row_1 = v_margin+12; // draw a "vertical" wall to mount a circuit board to, dead center pcb_holder(h=10, l=top_row-rail_clearance*2, th=1.15, wall_thickness=1); // lower h-rib reinforcer ## Photos ### Photos ## Documentation: * [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/nl4md-v speakON Chassis Connectors, 4 pole male XLR receptacle, switching contacts, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc3fah2 A Series, 3 pole XLR female receptacle with 6.35mm (1/4in) mono jack, switched, gold plated contacts, https://www.neutrik.com/en/product/nmj6hfd2-au M Series, 6.35mm (1/4in) stereo jack, vertical PCB mount, https://www.neutrik.com/en/product/nc5mbh B Series, 5 pole female receptacle, grounding: without ground / shell contact, vertical PCB mount, https://www.neutrik.com/en/product/nc3mbh-1 B Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc4fah A Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel: 9.8mm (alpha pots sliders: 3mm above panel, ample thunkicons: probably too short without extra spacers, use mini toggle pushbuttons: ample space above pcb micro toggle: probably too short without extra spacers, use mini toggle pushbuttons: ample space above pcb micro toggle: 0mm above panel; could work with printed spacers mini toggle: 4mm above panel, tight but possible mini toggle: 4mm above panel, ample thunkicons: probably too tight; could work with printed spacers and existing lead lengths alpha pots: barely enough to attach knob 01bb4964a6 Add CV in that pauses the clock oscillilator an external clock. One idea: add a switch of some that get squished or have excessive padding. This requires Futura font files. The Filmoscope Quentin typeface facet normal 0.500093 -0.865972 -7.30812e-05 facet normal -4.949282e-001 -8.661245e-001 6.981707e-002 vertex 2.724904e+000 3.050906e+000 2.470218e+001 facet normal 4.851188e-001 8.489584e-001 2.095936e-001 vertex -2.697147e+000 -3.127179e+000 2.475471e+001 facet normal -0.290163 -0.02858 0.95655 facet normal -7.873540e-01 -1.326791e-03 6.164997e-01 facet normal -0.665275 0.392534 0.63508 facet normal -0.0995799 6.68588e-05 0.99503 vertex 7.94263 -0.99989 19.9446 facet normal 0.367708 -0.00385378 0.929933 vertex 7.37107 -0.303284 6.90571 facet normal -0.638745 0.741889 0.203973 vertex -4.37272 5.83103 7.67586 facet normal -3.036606e-01 -9.527803e-01 -0.000000e+00 facet normal -2.036634e-15 -1.002308e-15 -1.000000e+00 facet normal 0.881899 -0.471439 2.92089e-06 facet normal 9.127763e-01 4.084597e-01 -0.000000e+00 vertex -1.038646e+02 9.578044e+01 1.055000e+01 facet normal -0.0814915 0.0817041 0.993319 vertex 4.58792 4.29176 7.81747.

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