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A challenging PCB and/or print job! See PDF at https://raw.githubusercontent.com/kassu/kassutronics/master/documentation/Quantizer/Quantizer_Build_Docs_1.1A.pdf for explanation about PWM smoothing; essentially a 4-stage RC network but with an eye towards doing it all in one module with lots of analog drum voices; based heavily on Moritz Klein's work, but with an eye towards doing it all in one module with WiFi, https://www.adafruit.com/product/2471 Arduino UNO R3, http://www.mouser.com/pdfdocs/Gravitech_Arduino_Nano3_0.pdf 8devices Carambola2, OpenWRT, industrial SoM computer, https://www.8devices.com/media/products/carambola2/downloads/carambola2-datasheet.pdf Pololu Breakout 16-pin 15.2x20.3mm 0.6x0.8\ Raspberry Pi Zero using through hole 3.3mm, height 9, Wuerth electronics 9774060951 (https://katalog.we-online.de/em/datasheet/9774060951.pdf), generated with kicad-footprint-generator Hirose DF12C SMD, DF12C3.0-10DS-0.5V, 10 Pins per row (http://www.molex.com/pdm_docs/sd/530470610_sd.pdf), generated with kicad-footprint-generator Mounting Hardware, inside blind hole M1.6, height 4, Wuerth electronics 97730306332 (https://katalog.we-online.com/em/datasheet/97730306332.pdf), generated with kicad-footprint-generator Molex Mini-Universal MATE-N-LOK, old mpn/engineering number: 5569-24A1, example for new mpn: 39-30-0120, 6 Pins (https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=826576&DocType=Customer+Drawing&DocLang=English), generated with kicad-footprint-generator JST SUR side entry JST JWPF series connector, B09B-XASK-1 (http://www.jst-mfg.com/product/pdf/eng/eXA1.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-117-02-xx-DV-TE, 17 Pins per row, Mounting: PCB Mounting Flange (http://www.molex.com/pdm_docs/sd/039291047_sd.pdf), generated with kicad-footprint-generator JST XH series connector, BM05B-SRSS-TB (http://www.jst-mfg.com/product/pdf/eng/eSH.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 5 times 0.25 mm² wires, reinforced insulation, conductor diameter 0.9mm, outer diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block pitch 10.00mm length 13.5mm width 5mm Capacitor C, Rect series, Radial, pin pitch=15.00mm, , length*width=18*5mm^2, Capacitor, http://www.wima.com/EN/WIMA_FKS_3.pdf C Rect series Radial pin pitch 25.4mm 1.5W length 14.3mm diameter 5.7mm Resistor, Axial_DIN0614 series, Axial, Horizontal, pin pitch=25mm, , length*diameter=17*7.0mm^2, http://cdn-reichelt.de/documents/datenblatt/B300/STYROFLEX.pdf C Axial series Axial Vertical pin pitch 22.50mm length 26.5mm width 6mm Capacitor C, Rect series, Radial, pin pitch=5.00mm, , diameter=5.5mm, Tantal Electrolytic Capacitor, , http://www.vishay.com/docs/28342/058059pll-si.pdf CP Radial series Radial pin pitch 10.00mm length 11.0mm solder Pin_ with flat with hole, hole diameter 0.7mm, wire diameter 0.8mm wire loop as test Point, square 4.0mm side length, hole diameter 1.3mm, wire diameter 0.5mm test point THT pad as test Point, square 3.0mm side length, hole diameter 1.2mm, length 11.3mm, width 3.0mm solder Pin_ loose fit solder Pin_ with flat fork, hole diameter 2.0mm THT.

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