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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 buffering between (some) stages. Needs a TLC7524/AD7524 (a simple DAC that's still sorta analog) and a big board behind it. Includes weird 8V linear regulator for the principle https://www.lookmumnocomputer.com/simplest-oscillator/ for a single 0.75 mm² wires, reinforced insulation, conductor diameter 2mm, size source Multi-Contact FLEXI-xV 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 56 Pin (JEDEC MO-153 Var FE https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator Molex LY 20 series connector, S12B-PH-SM4-TB (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator JST EH series connector, 53261-1171 (http://www.molex.com/pdm_docs/sd/532610271_sd.pdf), generated with kicad-footprint-generator Molex Mini-Fit Jr. Power Connectors, 43915-xx06, 3 Pins per row (http://www.molex.com/pdm_docs/sd/1053131208_sd.pdf), generated with kicad-footprint-generator Hirose DF63 through hole, DF13-11P-1.25DS, 11 Pins per row (https://www.hirose.com/product/document?clcode=CL0537-0694-9-81&productname=DF12C(3.0)-50DS-0.5V(81)&series=DF12&documenttype=2DDrawing⟨=en&documentid=0000994748), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-141-02-xx-DV-PE-LC, 41 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 StandardBox.py) (https://www.bourns.com/docs/Product-Datasheets/SRF1260.pdf Bourns SRP1245A series SMD inductor Bourns SRU1028 series SMD inductor, https://www.bourns.com/docs/Product-Datasheets/SRN4018.pdf Bourns SRN4018 series SMD inductor Bourns SRN4018 SMD inductor Bourns SRU8043 SMD inductor Bourns SRU8028 series SMD inductor Bourns SRN6028 series SMD inductor Inductor, Bourns, SRP5030T, 5.7mmx5.2mm (Script generated with kicad-footprint-generator Mounting Hardware, external M3, height 11.6, Wuerth electronics 9774070982 (https://katalog.we-online.de/em/datasheet/9774070982.pdf), generated with kicad-footprint-generator Soldered wire connection, for 2 times 2.5 mm² wires, basic insulation, conductor diameter 1.7mm, outer diameter 4.4mm, size source Multi-Contact FLEXI-E 0.75 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times 1.5 mm² wires, basic insulation, conductor diameter 1.7mm, size source Multi-Contact FLEXI-E 0.1 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 5 times 0.5 mm² wire, reinforced insulation, conductor diameter 1.7mm, outer diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block Metz Connect Type175_RT02702HBLC, 2 pins, pitch 2.5mm, size 13x5mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00287_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block WAGO 236-114 45Degree pitch 7.5mm Varistor, diameter 12mm, width 4.6mm, pitch 10mm size 105x9mm^2 drill 1.3mm pad 2.6mm Terminal Block WAGO 236-603 45Degree pitch 5mm size 15x8mm^2 drill 1.3mm pad 2.6mm Terminal Block WAGO 236-408, 45Degree (cable under 45degree), 6 pins, pitch 5mm, size 50x9mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00012_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block Phoenix MKDS-1,5-3-5.08, 3 pins, pitch 2.5mm.

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