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BackLicenses", as defined caaf12f2da replaces FIREBALL mask/etch with silkscreen replaces FIREBALL mask/etch with silkscreen replaces FIREBALL mask/etch with silkscreen From c4e1c30b9b25348d7c704a6560eec4b96105b036 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Checkpoint after fixes but before shrinking boards 007cc05932dfa23f85127799f5505afc7b25772e Stuff all teh scad files in aac0a4a5b4 Notes from debugging Notes from MK's PCB livestream Footprints: - avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals 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 the two clockwise-most pins, looking from below. Clock rate (B100k) (not sure yet which 2 pins diameter 8.0mm Tantal Electrolytic Capacitor, , http://www.vishay.com/docs/42037/53d.pdf CP Axial series Axial Horizontal pin pitch 7.50mm diameter 16mm Electrolytic Capacitor CP, Radial series, Radial, pin pitch=2.50mm, diameter=6.3mm, height=5mm, Non-Polar Electrolytic Capacitor C Radial series Radial pin pitch 10.00mm diameter 7.5mm Fastron XHBCC Inductor, Axial series, Axial, Vertical, pin pitch=3.81mm, , length*diameter=7.6*3.6mm^2, , http://www.diodes.com/_files/packages/DO-15.pdf Diode DO-15 series Axial Horizontal pin pitch 12.7mm length 7mm width 6.5mm Capacitor C, Rect series, Radial, pin pitch=17.78*30.48mm^2, , length*width=43.18*22.86mm^2, Bourns, 8100, http://datasheet.octopart.com/8120-RC-Bourns-datasheet-10228452.pdf L_CommonMode_Toroid Vertical series Radial pin pitch 20.32mm length 16mm diameter 6.3mm Fastron VHBCC Inductor, Axial series, Axial, Horizontal, pin pitch=15.24mm, , diameter=21mm, Vishay, IHB-2, http://www.vishay.com/docs/34015/ihb.pdf Inductor Radial series Radial pin pitch 20.3mm 5W length 21.3mm width 4.8mm Resistor, Bare_Metal_Element series, Bare Metal Strip Wire Horizontal pin pitch 2.50mm 5.00mm length 7.2mm width 4.5mm Capacitor C, Rect series, Radial, pin pitch=7.50mm, , diameter*width=11*5.0mm^2, Capacitor, http://www.vishay.com/docs/28535/vy2series.pdf C Disc series Radial pin pitch 5.08mm length 9mm diameter 5.3mm Diode, DO-201AE series, Axial, Horizontal, pin pitch=12.7mm, , length*diameter=9.52*5.33mm^2, , http://www.slottechforum.com/slotinfo/Techstuff/CD2%20Diodes%20and%20Transistors/Cases/Diode%20DO-27.jpg Diode DO-27 series Axial Horizontal pin pitch 7.62mm length 16mm diameter 6.3mm height 5mm Non-Polar Electrolytic Capacitor CP Radial series Radial pin pitch 8.40mm length 21.6mm width 9.1mm Bourns 5700 L_Toroid, Vertical series, Radial, pin pitch=6.40mm, , diameter=3.175mm, Diameter3-5mm, Amidon-T12 L_Toroid Horizontal series Radial pin pitch 7.62mm 15W length 48mm width 12.5mm height 12.5mm Resistor, Axial_Power series, Box, pin pitch=38.1mm, 7W, length*width*height=35.3*9.5*9.5mm^3, shunt pin pitch 5.00mm diameter 6mm Resistor, Axial_DIN0617 series, Axial, Horizontal, pin pitch=12.5mm, .
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