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Normal 0.000195511 -0.116119 0.993235 vertex -7.37473 -0.0747576 6.86461 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## Documentation: ### Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf * [How to use](Docs/use.md 96f746fa2d Final tweaks, version submitted to JLCPCB on 20240124 3d279dd88c Finish schematic, add PDF' (#2) from schematic by Eeschema 5.1.9-73d0e3b20d~88~ubuntu20.04.1 Generated from schematic by Eeschema 5.1.10-88a1d61d58~90~ubuntu20.04.1 **Component Count:** 76 | Refs | Qty | Component | Description | Vendor | SKU | | | J9 | 1 nF | Unpolarized capacitor | | R20, R22 | 2 | | Tayda | A-826 | | | | Tayda | A-1531 or A-557 | | | D6, D7 | 2 | 10k | Resistor | | R23, R24, R25, R27 Switch, triple pole double throw, right angle, PTS645VL58-2 LFS tactile switch D reed switch, default-closed D SPDT reed switch K reed magnetic switch SPDT D rotary switch with LED, generic K switch dp3t ON-ON-ON D Switch, dual pole triple throw, 3 position switch, SP3T K switch spdt single-pole double-throw spdt ON-ON D Push button switch Off-On CuK sub miniature slide switch, right-angle, http://www.ckswitches.com/media/1422/js.pdf Surface Mount Single Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-7810345, 3 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 ipc_gullwing_generator.py MSOP, 16 Pin (JEDEC MO-153 Var CD https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator ipc_noLead_generator.py UQFN, 20 Pin (https://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf), generated with kicad-footprint-generator Molex LY 20 series connector, 502382-1370 (http://www.molex.com/pdm_docs/sd/5023820270_sd.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 3 times 0.75 mm² wires, reinforced insulation, conductor diameter 2.4mm, outer diameter 2mm, outer diameter 2.7mm, size source Multi-Contact FLEXI-E 0.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Molex Sabre Power Connector, 46007-1103, With thermal vias in pads, 4 Pins per row, Mounting: PCB Mounting Flange (http://www.molex.com/pdm_docs/sd/039291047_sd.pdf), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: 26-60-4040, 4 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 ipc_noLead_generator.py 16-Lead Lead Frame Chip Scale Package, 3x3mm, 0.5mm pitch, SMT, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F1734839%7FC%7Fpdf%7FEnglish%7FENG_CD_1734839_C_C_1734839.pdf%7F4-1734839-0 TE FPC connector, 29 bottom-side contacts, 1.0mm pitch, 1.0mm height, SMT, http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=84953&DocType=Customer+Drawing&DocLang=English&DocFormat=pdf&PartCntxt=84953-4 TE FPC connector, 36 top-side contacts, 0.5mm.

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