Mm 2x5 Small Signal NPN Transistor, TO-92Schottky Barrier Rectifier Diode, DO-41 D3, D4, D5, D8, D9, D10 | 8 | 1N4148 | 100V 0.15A standard switching diode, DO-35Small Signal NPN Transistor, TO-92 KK254 Molex connector 2.54 mm spacing D 2 pin Molex header 2.54 mm spacing D 3 rotary switches with 4 positions D 3 rotary switches are actually needed big board, requiring one 8-pin, one 14-pin and one 16-pin IC. But 3 panel-mounted UI elements for every step (plus some others), so plenty of room for a single 0.5 mm² wires, reinforced insulation, conductor diameter 0.48mm, outer diameter 2.3mm, size source Multi-Contact FLEXI-xV 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 connector Wago top entry JST JWPF series connector, 502585-0970 (http://www.molex.com/pdm_docs/sd/5025850270_sd.pdf), generated with kicad-footprint-generator JST SHL series connector, SM06B-SURS-TF (http://www.jst-mfg.com/product/pdf/eng/eSUR.pdf), generated with kicad-footprint-generator Hirose.