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DPDT non single coil latching, https://content.kemet.com/datasheets/KEM_R7002_EC2_EE2.pdf Kemet EC2 signal relay DPDT double dual coil latching surface mount PLCC, 28 pins, through hole 3.2mm, height 3.6, Wuerth electronics 9774080943 (https://katalog.we-online.de/em/datasheet/9774080943.pdf), generated with kicad-footprint-generator Diode SMD 1206 (3216 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size from: http://www.megastar.com/products/fusetronic/polyswitch/PDF/smd2920.pdf), generated with kicad-footprint-generator Soldered wire connection, for 4 times 0.25 mm² wires, reinforced insulation, conductor diameter 1.7mm, outer diameter 3.9mm, size source Multi-Contact FLEXI-E/HK 0.127 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for a box film cap instead of A4 Updates from real TL0x4, fix pots being backwards, tighten up schematic, fit letter instead of implementing this with all distributions of the rail + a safety.

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