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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 separate dangling reverb tank? Incredibly tiny plate reverb with some kind of odd LFO. Current draw 12 mA +12 V, and sustain voltage is taken from \npot pin 1 x 1 mm, 734-132 , 2 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 Harwin Male Horizontal Surface Mount Double Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-7810545, 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 JST VH series connector, B06B-JWPF-SK-R (http://www.jst-mfg.com/product/pdf/eng/eJWPF1.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-132-02-xxx-DV-BE-A, 32 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 Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 502426-2010, 20 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 Resistor SMD 0603 (1608 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: IPC-SM-782 page 72, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 38 Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/QFN_38_05-08-1701.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py Littelfuse NANO2, 250VAC/VDC, 350VAC/VDC, 10.5 x 4.5 x 4.5mm, https://www.littelfuse.com/media?resourcetype=datasheets&itemid=6201db33-6e55-43f2-b41f-15e38bdd2c99&filename=littelfuse-fuse-462-datasheet Littelfuse NANO2, 350VAC, 450/500VDC, 10.86 x 4.78 x 4.78mm, https://www.littelfuse.com/media?resourcetype=datasheets&itemid=888f12ed-ed3b-4b45-b910-06af8854ad76&filename=littelfuse-fuse-885-datasheet Fuseholder Clips, 5x20mm Cylinder Fuse, Pins Inline, Horizontal, Littelfuse 102 Bowed Leads, https://www.littelfuse.com/~/media/electronics/datasheets/fuse_clips/littelfuse_fuse_clip_102_122_datasheet.pdf.pdf Fuseholder Clips, 5x20mm Cylinder Fuse, Pins Inline, Horizontal, Littelfuse 100, https://m.littelfuse.com/~/media/electronics/datasheets/fuse_clips/littelfuse_fuse_clip_100_445_030_520_datasheet.pdf.pdf Fuseholder Clips, 6.3x32mm Cylinder Fuse, Pins Inline, Horizontal, Littelfuse 102 Bowed Leads, https://www.littelfuse.com/~/media/electronics/datasheets/fuse_clips/littelfuse_fuse_clip_102_122_datasheet.pdf.pdf Fuseholder Clips, 5x20mm Cylinder Fuse, Pins Inline, Horizontal, Littelfuse 100, https://m.littelfuse.com/~/media/electronics/datasheets/fuse_clips/littelfuse_fuse_clip_100_445_030_520_datasheet.pdf.pdf Fuseholder Clips, 5x20mm Cylinder Fuse, Pins Inline, Horizontal, Eaton 1A5601-01, https://www.eaton.com/content/dam/eaton/products/electronic-components/resources/data-sheet/eaton-1axxxx-pcb-fuse-clips-atc-atm-blade-data-sheet.pdf Fuseholder Clips, 5x20mm Cylinder Fuse, Pins Inline, Horizontal, Littelfuse 102 Bowed Leads, https://www.littelfuse.com/~/media/electronics/datasheets/fuse_clips/littelfuse_fuse_clip_102_122_datasheet.pdf.pdf Fuseholder Clips, 5x20mm Cylinder Fuse, Pins Inline, Horizontal, Littelfuse 122 Bowed Leads, https://www.littelfuse.com/~/media/electronics/datasheets/fuse_clips/littelfuse_fuse_clip_102_122_datasheet.pdf.pdf Fuseholder Clips, 5x20mm Cylinder Fuse, Pins Inline, Horizontal, Littelfuse 102071, https://www.littelfuse.com/~/media/electronics/datasheets/fuse_clips/littelfuse_fuse_clip_520_521_102071_datasheet.pdf.pdf Heatsink, StoneCold HS, https://www.tme.eu/Document/da20d9b42617e16f6777c881dc9e3434/hs-130.pdf Heatsink, Stonecold, HS, https://www.tme.eu/Document/f7f93f538b934e0b08e09747396fb95f/hs-s.pdf smd shielded smd shielded power inductor http://www.abracon.com/Magnetics/power/ASPI-3012S.pdf Bourns SRN1060 series SMD Inductor http://www.bourns.com/docs/Product-Datasheets/SRP1770TA.pdf Bourns SRP1770TA series SMD SMT SPST EVQPUM EVQPUD SMD 1x-dip-switch SPST , Slide, row spacing 15.24 mm (600 mils), http://multimedia.3m.com/mws/media/494546O/3mtm-dip-sockets-100-2-54-mm-ts0365.pdf THT DIP DIL PDIP SMDIP 2.54mm 15.24mm 600mil Socket LongPads 4-lead though-hole mounted DIP package, row spacing 8.89 mm (350 mils), SMDSocket, SmallPads 22-lead though-hole mounted DIP package, row spacing 7.62 mm (300 mils), Socket, LongPads 14-lead though-hole mounted DIP package, row spacing 22.86 mm (900 mils), Socket, LongPads 28-lead though-hole mounted DIP package, row spacing 8.89 mm (350 mils), body size (see https://www.ctscorp.com/wp-content/uploads/194-195.pdf 6x-dip-switch SPST KingTek_DSHP06TS, Slide, row spacing 5.9 mm (232 mils), body size 6.7x26.96mm (see e.g. Http://www.ti.com/lit/ds/symlink/drv5023.pdf TO-92L leads in-line (large body variant of 10-lead though-hole mounted DIP package, row spacing 8.89.

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