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Clock rate goes down when resistance goes up, opposite to expectation. Schematic fixes: - C1 is too small; need more than 100k to get 1:1 between schematic and front panel, steel retention lug, lateral left PCB mount, https://www.neutrik.com/en/product/nl4md-v speakON Chassis Connectors, 8 pole chassis connector, gray D-size flange, mirrored self tapping screw holes (A-screw), horizontal PCB mount, self tapping screw holes (A-screw), horizontal PCB mount, https://www.neutrik.com/en/product/nc3mahl A Series, Chassis connector H female (A series layout), mates with Phoenix MSTB 2,5/3-ST, horizontal PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fahl-0 A Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel, vertical PCB Cherry MX keyswitch, 1.25u, PCB mount, additional ground contacts, https://www.neutrik.com/en/product/nc3mbh-e B Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc3mbhr B Series, 5 pole female receptacle, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, ISO Enter, PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch 1.00u PCB Cherry MX keyswitch, 1.25u, 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, 2.25u, plate mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch 2.75u PCB Cherry MX keyswitch 2.00u vertical PCB mount, additional ground contacts, https://www.neutrik.com/en/product/nc3fbh1-e B Series, 3 pole female XLR receptacle, grounding: mating connector shell to pin1 and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc3faah1 AA Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nl4md-h-3 speakON Chassis Connectors, 4 pole chassis connector, gray D-size flange, self tapping screw holes (A-screw), https://www.neutrik.com/en/product/nlt4md-v THT Mini XLR 5Pin right angle 3mm spherical light pipe 4 way SMT resistor net Bourns CAT16 series, 8 way SMT resistor net Bourns CAT16 series 8 way Resistor, MELF, MMB-0207, http://www.vishay.com/docs/28713/melfprof.pdf Resistor, MiniMELF, MMA-0204, http://www.vishay.com/docs/28713/melfprof.pdf 4 contact shunt resistor shunt resistor shunt resistor shunt resistor shunt resistor shunt resistor shunt resistor shunt resistor shunt resistor shunt resistor 4 contacts 4 contacts shunt resistor, https://www.ohmite.com/assets/docs/res_lvk.pdf 4 contacts 4 contacts shunt resistor, https://www.ohmite.com/assets/docs/res_lvk.pdf 4 contacts 4 contacts resistor smd 4 contacts resistor smd 4 contacts resistor smd 4 contacts shunt resistor, https://www.ohmite.com/assets/docs/res_lvk.pdf 4 contacts shunt resistor, https://www.ohmite.com/assets/docs/res_lvk.pdf 4 contacts shunt resistor, https://www.ohmite.com/assets/docs/res_lvk.pdf 4 contacts 4 contacts shunt resistor,https://www.ohmite.com/assets/docs/res_lvk.pdf Shunt Resistor SMD 0603 (1608 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: http://www.tortai-tech.com/upload/download/2011102023233369053.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TQFP, 176 Pin (http://www.microsemi.com/index.php?option=com_docman&task=doc_download&gid=131095), generated with kicad-footprint-generator Samtec HLE .100.

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