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See http://www.ti.com/lit/ds/symlink/tps62177.pdf WSON 0.5 thermal vias in pads, 4 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator JST ZE series connector, S06B-J21DK-GGXR (http://www.jst-mfg.com/product/pdf/eng/eJFA-J2000.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-146-02-xxx-DV, 46 Pins per row (http://www.molex.com/pdm_docs/sd/431600105_sd.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, B5B-EH-A (http://www.jst-mfg.com/product/pdf/eng/eEH.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 4.5mm, height 10, Wuerth electronics 97730506332 (https://katalog.we-online.com/em/datasheet/97730506332.pdf), generated with kicad-footprint-generator Soldered wire connection, for 4 times 2.5 mm² wire, basic insulation, conductor diameter 1.7mm, outer diameter 2.1mm, see http://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F282834%7FC1%7Fpdf%7FEnglish%7FENG_CD_282834_C1.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_4Ucon THT Terminal Block Phoenix PT-1,5-13-3.5-H pitch 3.5mm size 21x6.5mm^2 drill 1.2mm pad 3mm Terminal Block Phoenix MKDS-3-2-5.08, 2 pins, http://www.kingbright.com/attachments/file/psearch/000/00/00/L-2774GD(Ver.7B).pdf LED_Rectangular Rectangular Rectangular size 5.0x2.0mm^2 z-position of LED center 1.0mm 2 pins C1: enlarge footprint; a box film cap for 100v is smaller, but not to front panel // h = how deep to make fitting inside a case easier. Or 10mm if it can fit; losing the bodge area. Outs: Clock Out - 1K to U2-14 - Casc out 2x Toggle Switches, 2pin: all step switches (all go to same bus) - run/stop 2x Pushbutton switches, all 2pin: - all step switches (all go to same bus 2x Pushbutton switches, all 2pin: - Glide attenuator (B10k) (join two left pins from below Clock rate goes down when resistance goes up, opposite to expectation. Schematic fixes: - C1 is too small; need more than 100k to get an idea how to adapt them if they cut to the Commons to promote the ideal of a simple.

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