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Photos ### Photos ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md) How to use for rounding teh top edge. [mm] top_rounding_radius = 8; // Cylinder faces to use the 4 pins (http://www.qingpu-electronics.com/en/products/WQP-PJ320E-177.html PJ31060-I 6pin SMD 3.5mm stereo headphones jack. Headphones jack plug stereo 3.5mm PJ31060-I PJ31060 TRS 3.5mm, horizontal, through-hole, , circular holeshttps://www.cui.com/product/resource/sj1-353xng.pdf TRS audio jack stereo horizontal TRS 3.5mm, horizontal, through-hole, , circular holeshttps://www.cui.com/product/resource/sj1-353xng.pdf TRS audio jack stereo horizontal waterproof 6.35mm (1/4 in) Vertical Jack, 3 x 10.1 mm, Time-Lag T, 250 VAC, 125 VDC (https://us.schurter.com/bundles/snceschurter/epim/_ProdPool_/newDS/en/typ_UMZ_250.pdf fuse smd mount holder SunFuse Ceramic Slow Blow Fuse 6H_6HP.PDF UL/CSA 6x32mm Ceramic Slow Blow Fuse Fuseholder TR5 Littelfuse/Wickmann No. 460 No560 Surface Mount Single Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-7811045, 10 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 SlimStack Fine-Pitch SMT Board-to-Board Connectors, 55560-0601, 60 Pins (http://www.molex.com/pdm_docs/sd/529910308_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-147-02-xxx-DV, 47 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 ipc_noLead_generator.py QFN, 24 Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/QFN_20_05-08-1742.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 2.7mm, height 10, Wuerth electronics 9774015243 (https://katalog.we-online.de/em/datasheet/9774015243.pdf), generated with kicad-footprint-generator Hirose DF11 through hole, DF11-16DP-2DSA, 8 Pins per row (https://www.hirose.com/product/en/products/DF13/DF13-4P-1.25DS%2820%29/), generated with kicad-footprint-generator Mounting Hardware, inside through hole M3, height 6, Wuerth electronics 9775026960 (https://katalog.we-online.com/em/datasheet/9775026960R.pdf), generated with kicad-footprint-generator JST J2100 series connector, B2B-PH-SM4-TB (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator connector wire 2sqmm strain-relief Soldered wire connection with double feed through strain relief, for 5 times 0.127 mm² wires, basic insulation, conductor diameter 2.4mm, outer diameter 3.9mm, size source Multi-Contact FLEXI-E 0.75 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 4 times 0.75 mm² wires, basic insulation, conductor diameter 0.65mm, 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 with , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT terminal block Metz Connect Type011_RT05506HBWC, 6 pins, pitch 2.5mm, size 9.7x10mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00012_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block WAGO 804-307, 45Degree (cable under 45degree), 2 pins, pitch 5mm, size 55x8.1mm^2, drill diamater 1.3mm, pad diameter 2.4mm, see http://www.4uconnector.com/online/object/4udrawing/10686.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block Phoenix PTSM-0,5-4-2.5-H-THR, 4 pins, pitch 5mm, size 50x12.6mm^2, drill diamater 1.15mm, pad diameter 2.1mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00232_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00063, 45Degree (cable under 45degree), 5 pins, pitch 5mm, size 70x9mm^2, drill diamater 1.15mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00078_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO.

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