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Dual or quad would add very little cost even without 1v/oct, could be other values, ceramic may work, test debouncing. Maybe enlarge footprint if needed. Subject: [PATCH 18/18] Final revision; added custom DRC as project file ) ) ) Latest commits for file Docs/use.md main synth_tools/Schematics/SynthMages.pretty/Pushbutton Switch (PBS105).kicad_mod 32 lines 74231bd333 Go to file 6523065365 updates the potentiometer pads and thermal vias; see section 7.2 of http://www.st.com/resource/en/datasheet/stm32f429ng.pdf WLCSP-143, 11x13 raster, 4.539x5.849mm package, pitch 0.4mm; see section 6.6 of http://www.st.com/resource/en/datasheet/DM00273119.pdf X1-WLB0909, 0.89x0.89mm, 4 Ball, 2x2 Layout, 0.35mm Pitch, http://www.latticesemi.com/view_document?document_id=213 Analog Devices (Linear Tech), 133-pin LGA uModule, 15.0x15.0x4.32mm, https://www.analog.com/media/en/technical-documentation/data-sheets/4637fc.pdf NXP LGA, 8 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/20005045C.pdf#page=23), generated with kicad-footprint-generator XP_POWER IHxxxxDH DIP DCDC-Converter XP_POWER IHxxxxS, SIP, (https://www.xppower.com/pdfs/SF_IH.pdf), generated with kicad-footprint-generator Molex LY 20 series connector, 14110213002xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13002XXX_100228421DRW035C.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py SOIC, 18 Pin (JEDEC MO-153 Var JD https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator connector wire 0.15sqmm double-strain-relief Soldered wire connection with feed through strain relief, for 3 times outer diameter, generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 48 Pin (https://www.jedec.org/standards-documents/docs/mo-142-d variation EB), generated with kicad-footprint-generator Fuse SMD 1812 (4532 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: http://www.vishay.com/docs/20056/crcw01005e3.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 3 times outer diameter, generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-150-02-xxx-DV, 50 Pins per row (https://cdn.harwin.com/pdfs/M20-890.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-130-02-xxx-DV-BE-A, 30 Pins per row (https://cdn.harwin.com/pdfs/M20-781.pdf), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: A-41791-0004 example for new part number: 22-27-2021, 2 Pins per row (http://www.molex.com/pdm_docs/sd/439151404_sd.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP, 28 Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/05081932_0_UHE28.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-108-02-xxx-DV-BE-A, 8 Pins per row (http://www.molex.com/pdm_docs/sd/431600105_sd.pdf), generated with kicad-footprint-generator Molex 734 Male header (for PCBs); Angled solder pin 1 x 1 mm, 734-142 , 12 Pins (http://www.molex.com/pdm_docs/sd/908140004_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-109-02-xxx-DV-A, 9 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator JST EH series connector, SM22B-SURS-TF (http://www.jst-mfg.com/product/pdf/eng/eSUR.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 4 times 1.

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