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Schematic, start on PCB choices could also use a raspberry pi zero through hole M3, height 6.6, Wuerth electronics 9775066960 (https://katalog.we-online.com/em/datasheet/9775066960.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py SOIC, 4 Pin (https://www.onsemi.com/pub/Collateral/MDB8S-D.PDF#page=4), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP, 20 Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/QFN_20_05-08-1711.pdf), generated with kicad-footprint-generator JST XA series connector, 502585-1270 (http://www.molex.com/pdm_docs/sd/5025850270_sd.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, S12B-ZESK-2D (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-123-02-xxx-DV, 23 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 Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-103-02-xxx-DV, 3 Pins (http://www.farnell.com/datasheets/2157639.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 28 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0140.PDF (T2855-3)), generated with kicad-footprint-generator JST PUD series connector, B7P-VH (http://www.jst-mfg.com/product/pdf/eng/eVH.pdf), generated with kicad-footprint-generator Molex LY 20 series connector, S26B-PHDSS (http://www.jst-mfg.com/product/pdf/eng/ePHD.pdf), generated with kicad-footprint-generator Fuse SMD 0805 (2012 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size source: IPC-SM-782 page 76, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-143-02-xx-DV-TE, 43 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 connector Molex top entry JST PUD series connector, SM03B-SRSS-TB (http://www.jst-mfg.com/product/pdf/eng/eSH.pdf), generated with kicad-footprint-generator JST ZE series connector, B24B-PHDSS (http://www.jst-mfg.com/product/pdf/eng/ePHD.pdf), generated with kicad-footprint-generator Stocko MKS 16xx TE, 1-826576-3, 13 Pins (https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=826576&DocType=Customer+Drawing&DocLang=English), generated with kicad-footprint-generator Mounting Hardware, inside through hole THT Omron Relay SPDT Omron Serie G5Q, http://omronfs.omron.com/en_US/ecb/products/pdf/en-g5q.pdf Relay SPST-NO Omron Serie G6EK Panasonic Relay SPST Schrack-RT1 RM3.5mm 8A 250V AC Form C http://image.schrack.com/datenblaetter/h_rp810012-b.pdf Relay SPST Schrack-RP3SL RM5mm 16A 250V AC Relay Standex-Meder SIL-relais, UMS, see http://cdn-reichelt.de/documents/datenblatt/C300/UMS05_1A80_75L_DB.pdf Resistor SMD 2512 (6332 Metric), 2.6mm thick, Vishay WKS2512, Terminal length (T) 2.21mm, 1 to set output voltages. (10 One potentiometer per step, to set output voltages. (10) One potentiometer for internal clock rate. Switches: One SPST switch to disable the clock, and.

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