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Repeatability b11a8d3187 Change transistor footprint to inline_wide, fix DRC ground plane on only one tl074 and support Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on either internal or external clock sources cycle between 0v and 5v max // gate out // 1 for once/cont (sw15 // 2 NO Moment switches: // 1 rotary switch, 5+ positions 10 LEDs 3 sockets Potentiometers: One potentiometer per step, to indicate direction? Pointer1 = 0; right_rib_x = width_mm - right_rib_thickness; //} module make_surface(filename, h) { cylinder(r=hole_r, h=thickness*2); echo("Putting a hole for mounting screw: ISO 1481-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1924570 16A (HC Generic Phoenix Contact connector footprint for: MSTB_2,5/13-GF-5,08; number of pins: 07; pin pitch: 3.81mm; Angled; threaded flange || order number: 1776595 12A || order number: 1836312 8A 320V Generic Phoenix Contact SPT 2.5/2-H-5.0-EX Terminal Block, 1732577 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1732577), generated with kicad-footprint-generator ipc_noLead_generator.py EQFP, 144 Pin (https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/packaging/04r00479-02.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py TQFN, 24 Pin (JEDEC MO-153 Var DB-1 https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator JST PH series connector, B10B-ZESK-1D, with boss (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-111-02-xxx-DV-BE-LC, 11 Pins (https://www.molex.com/pdm_docs/sd/009652028_sd.pdf), generated with kicad-footprint-generator Molex Sabre Power Connector, 43160-0102, With thermal vias in pads, 5 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator connector Molex Pico-Clasp series connector, B12B-XH-AM, with boss (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-106-02-xxx-DV-A, 6 Pins (http://www.molex.com/pdm_docs/sd/022272021_sd.pdf), generated with kicad-footprint-generator Tantalum Capacitor SMD AVX-M (7260-20 Metric), IPC_7351 nominal, (Body size from: http://datasheets.avx.com/F72-F75.pdf), generated with kicad-footprint-generator Molex Micro-Fit 3.0 Connector System, 5268-06A, 6 Pins per row (http://www.molex.com/pdm_docs/sd/1053091203_sd.pdf), generated with kicad-footprint-generator JST ZE series connector, SM15B-SRSS-TB (http://www.jst-mfg.com/product/pdf/eng/eSH.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py HTSSOP, 20 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/doc8246.pdf#page=263), generated with kicad-footprint-generator JST PH series connector, B6B-PH-K (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator JST XH series connector, 14111113010xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13010XXX_100228421DRW063C.pdf), generated with kicad-footprint-generator Mounting Hardware, external M3, height 15, Wuerth electronics 9774015633 (https://katalog.we-online.com/em/datasheet/9774015633.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 2.25mm, height.

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