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BackFor 2032 Cell, 33.2 x 23.9mm, 2mm height above PCB, https://www.keyelco.com/userAssets/file/M65p4.pdf Keystone type 2998 battery holder coin cell cr1216 cr1220 cr1225 1xPP3 (9V) battery holder, http://www.comf.com.tw/ProductDetail.asp?no=148 Keystone type 3009 coin cell vertical Panasonic CR-2032/VS1N battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D348.PDF battery CR-2032 coin cell vertical Cherry MX keyswitch, 6.25u, plate mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch 1.25u Matias/ALPS keyswitch, 1.00u, http://matias.ca/switches/ Matias ALPS keyswitch 1.25u plate Cherry MX keyswitch 1.75u PCB Cherry MX keyswitch, 1.00u, http://matias.ca/switches/ Matias ALPS keyswitch 1.00u Matias/ALPS keyswitch, 1.75u, http://matias.ca/switches/ Matias ALPS keyswitch 2.75u plate Cherry MX keyswitch 6.25u PCB Cherry MX keyswitch, 1.25u, http://matias.ca/switches/ Matias ALPS keyswitch 1.75u PCB Cherry MX keyswitch, 2.75u, http://matias.ca/switches/ Matias ALPS keyswitch 1.50u PCB Cherry MX keyswitch, 2.25u, http://matias.ca/switches/ Matias ALPS keyswitch 1.25u PCB Cherry MX keyswitch, 2.25u, http://matias.ca/switches/ Matias ALPS keyswitch ISO enter 4-bit rotary coded switch, gull wing, Gray code, https://www.nidec-copal-electronics.com/e/catalog/switch/sh-7000.pdf SMD SMT crystal Abracon ABM10 Abracon Miniature Ceramic Smd Crystal ABM10 http://www.abracon.com/Resonators/ABM10.pdf SMD SMT SPST EVQP2 Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000CE28.pdf 0 Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000CE7.pdf 0 Tactile switch, SPST, 6.0x3.5 mm, H2.5 mm, straight, NO, gull wing leads: https://www.ckswitches.com/media/2779/pts636.pdf switch tactile SPST 1P1T CK components KSC6 tactile switch SPST angled PTS645VL31-2 LFS tactile switch with ground pin http://www.ckswitches.com/media/1479/kmr2.pdf tactile push button, 6x6mm e.g. PHAP33xx series, height=5mm tactile push button, 6x6mm e.g. PHAP33xx series, height=4.3mm tactile push button, 6x6mm e.g. PTS645xx series, height=9.5mm tact sw push PVA1 DPST momentary / push-push button, h=20.5mm C&K PVA1 https://www.ckswitches.com/media/1343/pva.pdf momentary / push-push button, h=23mm C&K PVA2 https://www.ckswitches.com/media/1343/pva.pdf right angle Surface-mount DC Barrel Jack, https://www.cliffuk.co.uk/products/dcconnectors/FC681465S.pdf Surface-mount DC Barrel Jack 2mm or 2.5mm center pin, https://www.kycon.com/Pub_Eng_Draw/KLDX-0202-AC%20&%20BC.pdf power jack works physically for male connector from wall wart. - Consider adding larger pads. Consider adding test pads. Have all needed trimpots handy: this permits the mise en scene which.
- Amidon-T25 L_Toroid Horizontal series Radial.
- 60x9.8mm^2, drill diamater 1.15mm, pad diameter 2.6mm.
- Teardrops updated C5 footprint & tracing; schematic.