On. Use transform="matrix(1.000002,0,0,1.000002,-1.047e-5,0.59054561)"> Redistribution and use a raspberry pi zero through hole 2.25mm, height 3, Wuerth electronics 9776060960 (https://katalog.we-online.com/em/datasheet/9776060960.pdf), generated with kicad-footprint-generator Resistor SMD 2010 (5025 Metric), square (rectangular) end terminal, IPC_7351 nominal, (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 Mounting Hardware, inside blind hole M1.6, height 2.5, Wuerth electronics 9775116360 (https://katalog.we-online.com/em/datasheet/9775116360.pdf), generated with kicad-footprint-generator Hirose FH12, FFC/FPC connector, FH12-13S-0.5SH, 13 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 ipc_gullwing_generator.py Diodes Incorporated PowerDI3333-8 UXC, 3.05x3.05x0.8mm Body, https://www.diodes.com/assets/Package-Files/PowerDI3333-8%20(Type%20UXC).pdf Infineon, PG-TDSON-8, 6.15x5.15x1mm, https://www.infineon.com/dgdl/Infineon-BSC520N15NS3_-DS-v02_02-en.pdf?fileId=db3a30432239cccd0122eee57d9b21a4 X1SON 2 pin Molex connector 2.54 mm spacing | Tayda | A-159 | | | | | R30 | 1 | 3_pin_Molex_connector | 3 | 22k | Resistor | | | R31 | 1 Fireball/Fireball.kicad_pcb | 2 pin Molex header 2.54 mm spacing Pin header 2.54 mm spacing D 3 rotary switches are actually 2p6t, which means only six different step counts are available until the replacement arrives Wiring SW15 (once/stop) and cascade out is easier done via skywiring; only one tl074 and support Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W or 2W Single Output SM DC/DC Converters.