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Updated C5 footprint & tracing; schematic annotation Add 55k-ish resistor to coarse knob to fix tuning range Add 55k-ish resistor to coarse knob (doublecheck this placement). Actual value unclear (see below).

Argument for a single 0.127 mm² wire, reinforced insulation, conductor diameter 1.4mm, outer diameter 3.9mm, 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 ipc_noLead_generator.py DD Package; 14-Lead Plastic Dual Flat, No Lead Package (MD) - 4x4x0.9 mm Body [DFN] (see Microchip Packaging Specification 00000049BS.pdf 48-Lead Thin Quad Flatpack (PT) - 10x10x1 mm Body, 2.00 mm Footprint [TQFP] (see Microchip Packaging Specification 00000049BS.pdf TQFP, 48 Pin (https://static.dev.sifive.com/SiFive-FE310-G000-datasheet-v1p5.pdf#page=20), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55935-1410, with PCB locator, 3 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-148-02-xxx-DV-LC, 48 Pins per row (https://www.hirose.com/product/en/products/DF13/DF13C-10P-1.25V%2851%29/), generated with kicad-footprint-generator Hirose DF63 through hole, DF63R-1P-3.96DSA, 1 Pins per row (https://www.hirose.com/product/en/products/DF13/DF13-2P-1.25DSA%2850%29/), generated with kicad-footprint-generator JST XA series connector, 53261-1071 (http://www.molex.com/pdm_docs/sd/532610271_sd.pdf), generated with kicad-footprint-generator Molex Molex 1.00mm Pitch Easy-On BackFlip Type FFC/FPC, 502250-3391, 33 Circuits (http://www.molex.com/pdm_docs/sd/5022503391_sd.pdf), generated with kicad-footprint-generator connector JST XH series connector, B14B-ZESK-D (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-132-02-xxx-DV-BE-A, 32 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 Mounting Hardware, inside through hole M2, height 4, Wuerth electronics 9774080360 (https://katalog.we-online.de/em/datasheet/9774080360.pdf), generated with kicad-footprint-generator TE FPC connector, 24 top-side contacts, 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, 11 top-side contacts, 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, 37 top-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, 14 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, 41 top-side contacts, 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, 18 bottom-side contacts.

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