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Photos [to be added] ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: make power connection traces larger; MK uses a ground plane Latest commits for branch hard_sync Merge pull request 'Finish schematic, add PDF Features already done: - Internal clock with manual control. Clock in socket with 80 contacts AT ISA 16 bits Bus Edge Connector x1 http://www.ritrontek.com/uploadfile/2016/1026/20161026105231124.pdf#page=70 Highspeed card edge connector for 2.4mm PCB's with 50 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 50 contacts (polarized Highspeed card edge connector for PCB's with 08 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 20 contacts (not polarized Highspeed card edge connector for panel, 90° PCB mount 4 pin, 0.5mm square SMD pads Net tie, 3 pin, 0.5mm square SMD pads Net tie, 3 pin, 0.3mm round THT pads Net tie, 4 pin, Right Angle, Surface Mount, ZIF, Bottom Contact FFC/FPC, 200528-0170, 17 Circuits (http://www.jae.com/z-en/pdf_download_exec.cfm?param=SJ103130.pdf), generated with kicad-footprint-generator JST ZE series connector, BM03B-AUHKS-GA-TB (http://www.jst-mfg.com/product/pdf/eng/eAUH.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py 1-way, 2.8mm lightpipe, 10mm lens output height, 17mm protrusion, https://www.bivar.com/parts_content/Datasheets/RLP1-XXX-XXX.pdf planar light pipe 4 way 3mm PLCC-2 PLCC-4 planar light pipe 4 way SMT resistor net Bourns CAT16 series 8 way SMT resistor net, Bourns CAT16 series, 8 way SMT resistor net, Bourns CAT16 series 8 way Resistor, MELF, MMB-0207, http://www.vishay.com/docs/28713/melfprof.pdf Resistor, MiniMELF, MMA-0204, http://www.vishay.com/docs/28713/melfprof.pdf 4 contact shunt resistor shunt resistor 4 contacts shunt resistor, https://www.ohmite.com/assets/docs/res_lvk.pdf 4 contacts shunt resistor, https://www.ohmite.com/assets/docs/res_lvk.pdf 4 contacts resistor smd 4 contacts shunt resistor,https://www.ohmite.com/assets/docs/res_lvk.pdf Shunt Resistor SMD 01005 (0402 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size from: http://www.kemet.com/Lists/ProductCatalog/Attachments/253/KEM_TC101_STD.pdf), generated with kicad-footprint-generator Diode SMD 1210 (3225 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: http://www.tortai-tech.com/upload/download/2011102023233369053.pdf), generated with kicad-footprint-generator Molex Mini-Fit Sr. Power Connectors, old mpn/engineering number: 1-794105-x, 9 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 blind hole M1.6, height 1, Wuerth electronics 9775041360 (https://katalog.we-online.com/em/datasheet/9775041360.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 5 times 0.127 mm² wires, reinforced insulation, conductor diameter 2.4mm, see http://www.philmore-datak.com/mc/Page%20197.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block 4Ucon ItemNo. 10691 pitch 3.5mm size 10.5x6.5mm^2 drill 1.2mm pad 3mm Terminal Block WAGO 236-305 45Degree pitch 7.5mm size 32.3x14mm^2 drill 1.15mm pad 3mm Terminal Block 4Ucon ItemNo. 10688 pitch 3.5mm.

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