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BackN **UI:** -2 5mm LEDs - one per step // 1 for 5v / 2.5v output mode // 10 LEDs 3 sockets 6 sockets Potentiometers: One potentiometer per step, to indicate current step. (10 - CLOCK out - could be done externally with a work based on https://www.analog.com/media/en/technical-documentation/data-sheets/199399fc.pdf TO-92 2-pin leads in-line, wide, drill 0.75mm (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot361-1_po.pdf TSSOP, 28 Pin (JEDEC MO-194 Var AB https://www.jedec.org/document_search?search_api_views_fulltext=MO-194), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-119-02-xxx-DV, 19 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Molex Micro-Fit 3.0 Connector System, 43045-1821 (alternative finishes: 43045-040x), 2 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 Mounting Hardware, inside through hole M3, height 3, Wuerth electronics 97730306330 (https://katalog.we-online.com/em/datasheet/97730306330.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket.
- Length*diameter=93*29.0mm^2, Electrolytic Capacitor, http://cdn-reichelt.de/documents/datenblatt/B300/TANTAL-TB-Serie%23.pdf CP.
- MBLS, see http://www.vishay.com/docs/89959/mbl104s.pdf http://www.vishay.com/docs/88854/padlayouts.pdf Diode Polymer Protected Zener.