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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 the 4 pins RGB RGBLED LED, Round, FlatTop, Rectangular size 4.0x2.8mm^2 diameter 2.0mm, hole diameter 1.3mm, wire diameter 0.5mm test point wire loop with bead as test Point, diameter 1.0mm, hole diameter 0.5mm test point wire loop wire loop as test Point, square 2.5mm side length test point SMD pad as test Point, diameter 3.0mm z-position of LED center 1.6mm, 2 pins, pitch 3.5mm, size 25.2x7mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00067_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block WAGO 236-305, 45Degree (cable under 45degree), 6 pins, http://www.lodestonepacific.com/CatKpdf/VTM950-6.pdf Inductor, Radial series, Radial, pin pitch=27.18mm, , diameter=40.64mm, Vishay, IHB-4, http://www.vishay.com/docs/34015/ihb.pdf Inductor Radial series Radial pin pitch 25.4mm 0.5W = 1/2W length 9mm diameter 3.2mm Resistor, Axial_DIN0309 series, Axial, Horizontal, pin pitch=20mm, , length*diameter=12*10.5mm^2, http://cdn-reichelt.de/documents/datenblatt/B300/STYROFLEX.pdf C Axial series Axial Vertical pin pitch 2.50mm diameter 10mm Electrolytic Capacitor CP, Radial series, Radial, pin pitch=15.00mm, , length*width=19*5mm^2, Capacitor, http://www.wima.com/EN/WIMA_MKS_4.pdf C Rect series Radial pin pitch 10.00mm diameter 35mm Electrolytic Capacitor CP Radial series Radial pin pitch 5.08mm size 20.3x8.45mm^2 drill 1.1mm pad 2.2mm Terminal Block TE 282834-6, 6 pins, http://www.ti.com/lit/ds/symlink/tps737.pdf module CMS SOT223 6 pins, pitch 5.08mm, see https://www.diodes.com/assets/Package-Files/TO126.pdf TO-126-3 Vertical RM 5.08mm TO-220F-2, Vertical, RM 1.27mm, staggered type-1, see http://www.st.com/resource/en/datasheet/tda7391lv.pdf TO-220-11 Vertical RM 0.9mm staggered type-1 TO-220F-4, Vertical, RM 1.27mm, MultiwattF-15, staggered type-2 TO-220F-11, Vertical, RM 2.54mm, see http://www.st.com/resource/en/datasheet/stp20nm60.pdf TO-220F-3 Horizontal RM 3.81mm Potentiometer, vertical, Alps RK09L Double, https://tech.alpsalpine.com/prod/e/pdf/potentiometer/rotarypotentiometers/rk09l/rk09l.pdf Potentiometer horizontal Bourns 3009P Potentiometer, horizontal, Bourns 3006Y, https://www.bourns.com/docs/Product-Datasheets/3006.pdf Potentiometer horizontal Vishay 148E-149E Dual, http://www.vishay.com/docs/57040/148149.pdf Potentiometer vertical Bourns PRS11S Potentiometer, Bourns, TC33X, Vertical, https://www.bourns.com/pdfs/TC33.pdf Potentiometer Bourns TC33X Vertical Potentiometer, vertical, ACP CA9-VSMD, http://www.acptechnologies.com/wp-content/uploads/2017/05/02-ACP-CA9-CE9.pdf Potentiometer vertical Piher PT-15-V15 Potentiometer, vertical, ACP CA14V-15, http://www.acptechnologies.com/wp-content/uploads/2017/10/03-ACP-CA14-CE14.pdf Potentiometer horizontal Vishay 43 Potentiometer, horizontal, Bourns 3266Z, https://www.bourns.com/docs/Product-Datasheets/3266.pdf Potentiometer vertical Piher PT-15-V15 Potentiometer, horizontal, Omeg PC16BU.

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