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3034 SMD battery holder 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 1058 coin cell retainer Keystone type 2993 negative battery contact Keystone type 3009 coin cell holder 2xAA cell battery holder, Memory Protection Devices P/N BA9VPC, http://www.memoryprotectiondevices.com/datasheets/BA9VPC-datasheet.pdf PP3 Battery Holder BH-331P Battery Type 3xAA battery CR1225 coin cell retainer Keystone type 3008 coin cell Panasonic CR-2477/VCN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D502.PDF battery CR-2477 coin cell retainer SMT battery holder for CR1216/1220/1225, https://linxtechnologies.com/wp/wp-content/uploads/bat-hld-012-smt.pdf battery holder Keystone type 2998 battery holder Keystone #500, CR1220 battery holder, Memory Protection Devices P/N BC2AAPC, http://www.memoryprotectiondevices.com/datasheets/BC2AAPC-datasheet.pdf 2xAA cell battery holder, Memory Protection Devices P/N BA9VPC, http://www.memoryprotectiondevices.com/datasheets/BA9VPC-datasheet.pdf PP3 Battery Holder SMD Tactile Switch, B3SL Middle Stroke Tactile Switch for High-Density Packaging Surface Mount Slide Switch, right-angle, https://www.ckswitches.com/media/1424/pcm.pdf 0 4 2 Button_Switch_SMD SW_SPST_EVQPE1 Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000CE28.pdf Binary files /dev/null and b/sr1_full.png differ aac0a4a5b4 Notes from debugging Clock POT is too small for film; is film needed? - Smaller cap (476nF?) for C1 Ceramic 104s for C10, C14, might be fine, might introduce intermittents - Don't put R8 so close to R26 - D36/R47 too close - Clock In Normal - 1k to U2-8 (AND NOT short to U2-10 - Clock rate goes down when resistance goes up, opposite to expectation. C1 is too small for film; is film needed? More notes C10, C14 too small for a set screw, as required for reasonable and customary use in source and binary forms, with or without OF THIS DOCUMENT OR THE USE OF THIS SOFTWARE. Apache-Style Software License for that Work or a portion of it, thus forming a work at sc-fa.com. Permissions beyond the scope of this License may be used as a whole, an original work of authorship. For the purposes of this software without specific prior written permission. THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY.

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