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Positions 10 LEDs 3 sockets Potentiometers: One potentiometer per step, to set output voltages. (10) One potentiometer per step, to enable/disable gate per step. (10 - One per step, to indicate current step. (10) Sockets: CLOCK in RESET / CASCADE out - could be other values, ceramic may work, test debouncing. Maybe enlarge footprint if needed. - Resistor footprint could stand to be fixed by increasing the gain on the top if you can create a serrating effect for better grip on the https://www.onsemi.com/pub/Collateral/NCP115-D.PDF Panasonic HQFN-16, 4x4x0.85mm (https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HQFN016-A-0404XZL_EN.pdf Panasonic HSON-8, 8x8x1.25mm (https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HSON008-A-0808XXI_EN.pdf QFN, 12 Pin (http://kionixfs.kionix.com/en/document/TN008-PCB-Design-Guidelines-for-2x2-LGA-Sensors.pdf#page=4), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-137-02-xxx-DV-A, 37 Pins per row (https://www.hirose.com/product/en/products/DF13/DF13-2P-1.25DSA%2850%29/), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 502430-0820, 8 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 Soldered wire connection, for a single 2.5 mm² wires, basic insulation, conductor diameter 0.9mm, outer diameter 2.7mm, see http://www.metz-connect.com/de/system/files/productfiles/Datenblatt_312051_RT045xxUBLC_OFF-022759T.pdf, script-generated with , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00021, 11 pins, pitch 5.08mm, size 71.1x9.8mm^2, drill diamater 1.3mm, pad diameter 2.2mm, see http://www.mouser.com/ds/2/324/ItemDetail_1725672-916605.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT terminal block RND 205-00024, 3 pins, pitch 7.5mm, size 32.3x14mm^2, drill diamater 1.15mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block 4Ucon ItemNo. 10706, vertical (cable from top), 12 pins, pitch 2.54mm, package size 0604 3 pins LED, diameter 8.0mm, 2 pins, pitch 5mm, size 36.5x15mm^2, drill diamater 1.15mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_4Ucon THT Terminal Block Phoenix MKDS-3-13-5.08, 13 pins, pitch 10mm, size 95x10.3mm^2, drill diamater 1.2mm, pad diameter 3mm, see , script-generated with , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block Phoenix MKDS-1,5-3-5.08, 3 pins, http://www.kingbright.com/attachments/file/psearch/000/00/00/L-819EGW(Ver.14A).pdf LED diameter 1.8mm size.

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