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(mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a microcontroller but no DAC. Also interesting UI, featuring lit pushbuttons in a narrow space between them left_panel_spacing = (left_panel_width) / 2.5; slider_spacing = 12.5; // space between centers of each subsequent Contributor: i\) changes to the fab)#

change footprints of transistors to save on panel wires Update to 7.0, slider footprint Update to 7.0, slider footprint Update to 7.0, slider footprint adds ideas for a single 2.5 mm² wires, basic insulation, conductor diameter 1.25mm, outer diameter 3.5mm, size source Multi-Contact FLEXI-E 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times 0.5 mm² wire, basic insulation, conductor diameter 0.48mm, outer diameter 4.4mm, size source Multi-Contact FLEXI-E_0.25 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-138-02-xxx-DV-LC, 38 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 ipc_gullwing_generator.py 6-pin SOT-23 package, Handsoldering, http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/sot-23rj/rj_8.pdf SOT-143R, reverse pinning, Handsoldering, https://www.nxp.com/docs/en/package-information/SOT143R.pdf module CMS SOT223 5 pins, pitch 5mm, size 15x12.5mm^2, drill diamater 1.2mm, pad diameter 2.6mm, see http://www.farnell.com/datasheets/100425.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block Phoenix PT-1,5-10-3.5-H pitch 3.5mm size 21x6.5mm^2 drill 1.2mm pad 3mm Terminal Block Phoenix MPT-0,5-9-2.54 pitch 2.54mm DCDC-Converter, RECOM, RECOM_R-78HB-0.5, SIP-3, pitch 2.54mm, size 10.6x6.2mm^2, drill diamater 1.15mm, pad diameter 2.6mm, see http://www.4uconnector.com/online/object/4udrawing/10699.pdf.

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