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All step switches (all go to same bus 2x Pushbutton switches, all 2pin: - Glide attenuator (B10k) (join two left pins from below) - Clock Rate - variable resist +6k between U2-8 and U2-9 - Reset Sw - when pressed, short +12V and the following procedure for assembly. As usual do the lowest components first — resistors and diodes — then sockets, ceramic capacitors, power header, transistors, film caps, electrolytic caps... Something like that. Consider: 1 simple on/off switch/button/knob/etc. Cb3a50e19a More tweaks after pro review "spice_external_command": "spice \"%I\"", Inkscape export via OpenSCAD DXF Export Fix R25/R1 connection - One SPDT switch per step, to indicate current step. (10) Sockets: CLOCK in RESET / CASCADE in RESET / CASCADE in RESET / CASCADE out Period: 1 day This is a combination of speakON socket and 6.35mm (1/4in) mono jack (T/S), https://www.neutrik.com/en/product/nj2fd-v 6.35mm (1/4 in) Vertical Jack, 3 x 3 mm, 0.5 mm pitch, ultra thin fine pitch quad flat package (http://www.st.com/resource/en/datasheet/stm8s003f3.pdf ST UQFN 6 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch Vertical 2-215079-0 9-215079-20 TE-Connectivity Micro-MaTch Vertical 1-215079-0 8-215079-10 TE-Connectivity Micro-MaTch Vertical 1-215079-4 8-215079-14 TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 8 pin SIM connector for PCB's with 40 contacts (polarized Highspeed card edge connector for PCB's with 60 contacts (not polarized Highspeed card edge connector for 2.4mm PCB's with 70 contacts (polarized conn samtec discrete wire terminal Samtec Micro Mate Discrete Wire Terminal Strip, 1.00 mm Pitch, Single Row, Vertical, Latch (source: https://suddendocs.samtec.com/prints/t1m-single-row-footprint.pdf TE Connectivity, HDI, Wire-to-Board, Fully Shrouded, Header: https://www.te.com/usa-en/product-440055-2.datasheet.pdf connector header hdr horizontal vertical shrouded fully-shrounded 440054-2 2-440054-2 4-440054-2 6-440054-2 2-440054-6 4-440054-6 6-440054-6 TE Connectivity, HDI, Wire-to-Board, Fully Shrouded, Vertical Header: https://www.te.com/usa-en/product-440054-2.datasheet.pdf connector header hdr horizontal vertical shrouded fully-shrounded 440055-2 2-440055-2 4-440055-2 6-440055-2 8-440055-2 TE Connectivity Buchanan WireMate connector, Poke-In series, 3-way, 4.0mm pitch, AWG18-22 (0.3255-0.823mm2), https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F2834006%7FB6%7Fpdf%7FEnglish%7FENG_CD_2834006_B6.pdf%7F2834006-1 TE-Connectivity Micro-MaTch Vertical 1-215079-8 8-215079-18 TE-Connectivity Micro-MaTch Vertical 1-215079-2 8-215079-12 TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 20 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch Vertical 1-215079-4 8-215079-14 TE-Connectivity Micro-MaTch Vertical 1-215079-8 8-215079-18 TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 12 pin 3-pin CPU fan 4-pin CPU fan Through hole angled socket strip THT 1x10 2.00mm single row Through hole straight socket strip, 1x20, 2.00mm pitch, double rows Surface mounted socket strip SMD 1x29 2.54mm single row Through hole straight pin header, 2x22, 1.00mm pitch, double cols (from Kicad 4.0.7), script generated Through hole straight pin header, 2x40, 2.54mm pitch, DIN 41651 / IEC 60603-13, double rows, 12.0mm.

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