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Interfaces to digital components and interconnects between middle and bottom boards. Final work on PCB 398c2b234c Checkpoint after tweaking footprints some more, starting over at 14hp cd18ed43dc Added hard sync to schematic, laid out PCB with exploratory 8hp layout 2x Sockets, all three pins need wires: - clk in - RESET / CASCADE in - pause in - CLOCK in - CLOCK out // RESET in // CLOCK in // CLOCK in RESET / CASCADE in RESET / CASCADE in RESET / CASCADE out Period: 1 day Digital Reverberation Unit, http://www.belton.co.kr/inc/downfile.php?seq=17&file=pdf (footprint from http://www.uk-electronic.de/PDF/BTDR-1.pdf Bulgin Battery Holder, BX0036, Battery Type C Receptacle, GCT, power-only, 6P, top mounted, horizontal, 5A: https://gct.co/files/drawings/usb4105.pdf USB C Type-C Receptacle SMD USB 2.0 and PD, 5A VBUS rating, https://datasheet.lcsc.com/lcsc/2211161000_HCTL-HC-TYPE-C-16P-01A_C2894897.pdf USB 3.0 type A Plug, Horizontal, http://cnctech.us/pdfs/1001-011-01101.pdf USB-A receptacle horizontal through-hole GCT USB1046, USB Type B Molex 734 Male header (for PCBs); Straight solder pin 1 x 1 mm, 734-166 , 6 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 Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-136-02-xxx-DV-BE-LC, 36 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 Molex SPOX Connector System, 53047-0610, 6 Pins (http://www.molex.com/pdm_docs/sd/022272021_sd.pdf), generated with kicad-footprint-generator JST GH series connector, S02B-ZESK-2D (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator JST PH series connector, 14110713001xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13001XXX_100228421DRW046C.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TSOP-I, 32 Pin (JEDEC MO-153.

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