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See https://diotec.com/tl_files/diotec/files/pdf/datasheets/pb1000.pdf Single phase bridge rectifier case 19x19mm, pitch 12.7mm, see https://diotec.com/tl_files/diotec/files/pdf/datasheets/pb1000.pdf Single phase bridge rectifier, https://www.bourns.com/docs/Product-Datasheets/CD-DF4xxSL.pdf Surface Mount Tactile Switch for High-Density Packaging with Ground Terminal, without Boss Ultra-small-sized Tactile Switch with High Contact Reliability, Side-actuated Model, without Ground Terminal, with Boss Ultra-small-sized Tactile Switch Ultra-small-sized Tactile Switch with High Contact Reliability, Top-actuated Model, without Ground Terminal, with Boss Ultra-small-sized Tactile Switch with LCD screen K switch SPST angled PTS645VL39-2 LFS C&K Button tactile switch https://www.ckswitches.com/media/1973/ksc7.pdf C&K Switches 1P1T SMD PTS125 Series 12mm Tact Switch Low-profile SMD Tactile Switch, https://www.e-switch.com/system/asset/product_line/data_sheet/165/TL3342.pdf SWITCH SMD KSA SW 4-bit rotary coded switch, gull wing, https://www.nidec-copal-electronics.com/e/catalog/switch/sh-7000.pdf 4-bit rotary coded switch, J-hook, https://www.nidec-copal-electronics.com/e/catalog/switch/sh-7000.pdf 4-bit rotary coded switch, through-hole, https://www.nidec-copal-electronics.com/e/catalog/switch/sh-7000.pdf SPST Off-On Pushbutton, 1A, 30V, CW Industries P/N GPTS203211B, http://switches-connectors-custom.cwind.com/Asset/GPTS203211BR2.pdf SPST button switch with 12 positions D 3 rotary switches are actually 2p6t, which means only six different step counts are available until the replacement arrives Wiring SW15 (once/stop) and cascade out is easier done via skywiring; only one side //calculated x value of exact middle of panel after deducting left/right sub-panels // top horizontal rib // h_wall(h=1.6, l=right_rib_x); // middle-bottom h rib pcb_holder(h=10, l=top_row-rail_clearance*2-15-thickness, th=1.15, wall_thickness=1); // lower h-rib reinforcer ## Photos [to be added] ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) .

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