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Grounding: without ground/shell contact, horizontal PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, 1.50u, PCB mount, https://www.neutrik.com/en/product/nc3fahr2 A Series, 4 pole chassis connector, black D-size flange, self tapping screw holes (A-screw), vertical PCB mount, https://www.neutrik.com/en/product/nc4mamh-ph A Series, 3 pole male XLR receptacle, grounding: separate ground contact connected to trigger, gate jack is normalized\nto +12 V, 10 mA -12 V ## 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 for rounding teh top edge. (Other "top rounding *" parameters are only relevant if checked.) enable_top_rounding = false; // Number of faces around the knob? Knurled = 1; top_margin = (board_height - hole_vdist) / 2; standoff_radius = hole_radius * 2.5; polygon([[0,0], [(board_width-insert_width)/2, -insert_depth], [board_width-(board_width-insert_width)/2, -insert_depth], [board_width, 0]]); 3D Printing/Panels/Radio_shaek_standoff.stl | Bin 0 -> 138868 bytes Docs/precadsr_bom.md | 71 Docs/precadsr_layout_back.pdf | Bin 0 -> 38764 bytes Panels/futura medium condensed bt.ttf | Bin 0 -> 171113 bytes Schematics/Luthers_VCO_schematic.pdf | Bin 0 -> 170624 bytes README.md | 3 * https://www.digikey.com/en/products/detail/bourns-inc/PTL30-15R0-103B1/3781301 (red B10K) and https://www.digikey.com/en/products/detail/bourns-inc/PTL30-15O0-105A2/7314942 (orange A1M *** The first two groups should be 10 nF. Documentation ## Mechanical assembly Documentation # ---> KiCad # For PCBs designed using KiCad: https://www.kicad.org/ # Format documentation: http://kicad-pcb.org/help/file-formats/ # KiCad backups folders *-backups # Compressed files *.zip # Mac stuff *.DS_Store # Emacs temps *~ \#* # LTSpice Simulations/*.log Simulations/*.raw Simulations/*.txt Copper Layer Stackup: ============================================================= L1 : F.Cu front L2 : B.Cu back Drill file 'precadsr-panel.drl' contains T1 3.200mm 0.1260" (4 holes) T5 15.200mm 0.5984.

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