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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 buffering between (some) stages. Needs a 4040 binary counter, but separated quantizer might not https://www.youtube.com/watch?v=3v1yTFsypqA Sample & Hold MK's S&H, though maybe move the arrow shaped cutout in the output from the top knobs // How much horizontal space needed for left-hand and right-hand sub-panels left_panel_width = 16.5+16.5+10.5; //two knob, one jack, plus space for well-aligned, well-printed numbers // step rotary switch - number of pins: 14; pin pitch: 5.08mm; Angled; threaded flange || order number: 1830596 8A 160V Generic Phoenix Contact connector footprint for: MC_1,5/10-GF-3.81; number of pins: 04; pin pitch: 5.08mm; Angled; threaded flange || order number: 1803277 8A 160V Generic Phoenix Contact connector footprint for: MSTBVA_2,5/8-G; number of pins: 06; pin pitch: 5.00mm; Angled; threaded flange || order number: 1806274 12A 630V Generic Phoenix Contact connector footprint for: MC_1,5/13-G-3.5; number of pins: 04; pin pitch: 3.50mm; Angled; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x6.5 C or ISO 7049-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1847466 8A 320V Generic Phoenix Contact connector footprint for: MSTBA_2,5/5-G; number of pins: 02; pin pitch: 5.00mm; Vertical || order number: 1766851 12A 630V.

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