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From schematic by Eeschema 5.1.10-88a1d61d58~90~ubuntu20.04.1 Component Count: 77 Refs 3 pin Molex connector 2.54 mm spacing | Tayda | A-4349 | | | | | Tayda | A-962 | | J2 | 1 | 10nF | Ceramic capacitor | | Tayda | A-827 | | S2 | 1 Consider replacing transistor through-holes with sockets or with a diameter between 16-19 mm: https://www.keyelco.com/product.cfm/product_id/826 Keystone #500, 12mm CR1220 battery holder, Keystone P/N 2468, http://www.keyelco.com/product-pdf.cfm?p=1033 AAA battery cell holder 2xAA cell battery CR-1025 coin cell holder Keystone type 3001 coin cell vertical Panasonic CR-1220/VCN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D140.PDF battery CR-1220 coin cell vertical Panasonic CR-2354/VCN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D486.PDF battery CR-2354/VCN coin cell vertical Panasonic CR-2450/VAN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D492.PDF battery CR-2450 coin cell retainer Keystone type 105 battery holder Keystone SMT (Auto-In/Ultra-Low) Holder for 2032 Cell, 33.2 x 23.9mm, 2mm height above PCB, https://www.keyelco.com/userAssets/file/M65p4.pdf Keystone type 3009 coin cell retainer Keystone 3034 SMD battery holder Keystone type 104 battery holder with leaf spring, Keystone, https://ken.keyeuro.eu/cat/590.pdf AA battery cell holder 2xAA cell battery holder, Memory Protection Devices P/N BC12AAPC, http://www.memoryprotectiondevices.com/datasheets/BC12AAPC-datasheet.pdf BC2003 CR2032 2032 Battery Holder 2479 Battery Type 3xAA Battery Holder BH-331P Battery Type 3xAAA Keystone Battery Holder 18650 Battery Holder BH-331P Battery Type 3xAAA Keystone type 105 battery holder for 2020, 2025 and 2032 coincell batteries. Http://www.keyelco.com/product-pdf.cfm?p=798 Keystone type 2998 battery holder Keystone type 3000 coin cell vertical Panasonic CR-3032/VCN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D508.PDF battery CR-3032 coin cell holder Keystone Battery Holder 18650 Battery Holder BH-331P Battery Type 3xAAA Keystone Battery Holder BH-331P Battery Type 3xAAA Keystone type 3001 coin cell retainer Keystone type 107 battery holder Keystone SMT (Auto-In/Ultra-Low) Holder for 2032 Cell, 33.2 x 23.9mm, 2mm height above PCB, https://www.keyelco.com/userAssets/file/M65p4.pdf Keystone type 2998 battery holder Keystone type 3000 coin cell vertical Cherry MX keyswitch, 1.50u, plate mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, ISO Enter, plate mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, 2.75u, PCB mount, replaces NL8MD-V-1, https://www.neutrik.com/en/product/nl8mdxx-v-3 speakON Chassis Connectors, 4 pole chassis connector, black D-size flange, mirrored self tapping screw holes (A-screw), vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3faav1-0 AA Series, 3.

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