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BackType 1057 coin cell vertical Panasonic CR-1220/VCN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D140.PDF battery CR-1220 coin cell retainer Keystone 3034 SMD battery holder Keystone 2xAAA cell battery holder, Keystone P/N 2468, http://www.keyelco.com/product-pdf.cfm?p=1033 AAA battery holder 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 Panasonic CR-3032/VCN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D508.PDF battery CR-3032 coin cell vertical Cherry MX keyswitch, 1.50u, PCB mount, https://www.neutrik.com/en/product/ncj9fi-h-0 Combo I series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc3mah-0 A Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, horizontal PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, 1.50u, PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3faav-0 AA Series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack, unswitched, fully threaded nose, https://www.neutrik.com/en/product/nrj6hf Slim Jacks, 6.35mm (1/4in) jack receptacle, vertical pcb mount, replaces NL8MD-V, https://www.neutrik.com/en/product/nl8mdxx-v 4 contacts, 3.5mm audio cui horizontal jack stereo horizontal circular TRS 3.5mm, horizontal, through-hole, , circular holeshttps://www.cui.com/product/resource/sj1-353xng.pdf TRS audio jack stereo horizontal waterproof 6.35mm (1/4 in) Vertical Jack, 3 x switching (normalling) stereo jack (T/TN/R/RN/S), https://www.neutrik.com/en/product/nj5fd-v 6.35mm (1/4 in) Vertical Jack, Non-switching stereo jack without switching contact, horizontal PCB mount, https://www.neutrik.com/en/product/nc3mahr A Series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack, metal nose, gold plated contacts, efficient chassis ground connection, T+R normalling contact, https://www.neutrik.com/en/product/nrj6hm-1-au Slim Jacks, 6.35mm (1/4in) stereo jack, vertical PCB mount, https://www.neutrik.com/en/product/nc3fbv2 AA Series, 3 pole XLR female receptacle with 6.35mm (1/4in) mono jack, switched, with chrome ferrule and straight PCB pins, https://www.neutrik.com/en/product/nmj6hfd4 M Series, 6.35mm (1/4in) mono jack, switched, with full score / pdf Update 'Samba Reggae 1.
- * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf.
- (Exception: if the hole to go.