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Short to U2-10 - Clock Out - 1K to U2-14 - Casc out 2x Toggle Switches, 3pin: 11 Toggle Switches, 3pin: - CV out, with probably +12v gates. Variable step count, 1-10 steps possible (with 2-3 extra switch positions to re-use for frequently-swapped positions). External reset via momentary push button. - Play continuously or play once (switch to select segments from each step. Could add a voltage to trigger steps. Replace C10 with 100K resistor, and bridge out R44 with a diode to U2-3 - Clock in socket with 80 contacts AT ISA 16 bits Bus Edge Connector Mini-PCI Express bus connector full size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=24 Mini-PCI Express bus connector (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=11 Mini-PCI Express bus connector full size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=24 Mini-PCI Express bus connector full size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=24 Mini-PCI Express bus connector full size with dual clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=28 Mini-PCI Express bus connector (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=11 Mini-PCI Express bus connector full size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=25 PCIexpress Bus Edge Connector BUS ISA AT Edge connector PCI bus Edge Connector BUS ISA AT Edge connector PCI bus Edge Connector Mini-PCI Express bus connector full size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=24 Mini-PCI Express bus connector half size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=25 PCIexpress Bus Edge Connector Mini-PCI Express bus connector (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=11 Mini-PCI Express bus connector full size with dual clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=28 Mini-PCI Express bus connector full size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=24 Mini-PCI Express bus connector full size with dual clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=28 Mini-PCI Express bus connector full size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=24 Mini-PCI Express bus connector full size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=24 Mini-PCI Express bus connector half size with clips (https://s3.amazonaws.com/fit-iot/download/facet-cards/documents/PCI_Express_miniCard_Electromechanical_specs_rev1.2.pdf#page=25 PCIexpress Bus Edge Connector x1 http://www.ritrontek.com/uploadfile/2016/1026/20161026105231124.pdf#page=70 Highspeed card edge card connector socket for 1.57mm PCBs, vertical, alignment pins, weld tabs (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf Samtec Micro Mate Discrete Wire Terminal Strip, 1.00 mm Pitch, Single Row, Horizontal (Right Angle) (source: https://suddendocs.samtec.com/prints/t1m-single-row-footprint.pdf conn samtec card-edge socket high-speed 0.8 mm Highspeed card edge card connector socket for 2.36mm PCBs, vertical (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf 0.8 mm Highspeed card edge connector for PCB's with 70 contacts (not polarized Highspeed card edge connector for 1.6mm PCB's with 30 contacts (polarized Highspeed card edge card connector socket for 1.57mm PCBs, vertical, alignment pins, weld tabs, board locks (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf 0.8 mm BGA-64, 10x10 raster, 4.618x4.142mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32l072kz.pdf WLCSP-49, 7x7 raster, 2.965x2.965mm package, pitch 0.4mm; https://www.latticesemi.com/view_document?document_id=213 UCBGA-81, 9x9 raster, 4x4mm package, pitch 0.4mm pad, 15x15mm.

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