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Keystone 3034 SMD battery holder Keystone type 3001 coin cell retainer Keystone 3034 SMD battery holder Keystone type 3001 coin cell cr1216 cr1220 cr1225 1xPP3 (9V) battery holder, Memory Protection Devices P/N BC2AAPC, http://www.memoryprotectiondevices.com/datasheets/BC2AAPC-datasheet.pdf 2xAA cell battery holder, http://www.keyelco.com/product-pdf.cfm?p=710 AA CR2 A battery holder for 2020, 2025 and 2032 coincell batteries. Http://www.keyelco.com/product-pdf.cfm?p=798 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 Cherry MX keyswitch, 1.00u, PCB mount, retention spring instead of the rail + a safety margin // margins from edges h_margin = thickness*2; v_margin = hole_dist_top*5; width_mm = hp_mm(width); // where to put the output jacks working_height = height - rail_clearance - thickness*2 - 16.5/2; // 16.5 is the decade counter Bergman's 10-step sequencer (up to 10 Alternative: Midi -> CV Alternative: CV from something else VCF MK's Diode Ladder VCF ~$8 in parts, needing only one side when convenient. You can even use a mix of the entire pot. State Gates (from Befaco * TBD, needs testing; but if LEDs are possible, this should be changed.

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