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BackDraw PCB layout: make power connection traces larger; MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some example modules schematic start, and some example modules a840574ffb AD&D 1e type faces // PWM duty attenuation /* [Default values] */ // Height (in mm). HoleDiameter = 6; //knob_radius top_row = height - hole_dist_top); cylinder(r=hole_r, h=thickness*2); echo("Putting a hole with radius: ", hole_r , " at ", hole_dist_side, height - v_margin; working_increment = working_height / 6; // generally-useful spacing amount for vertical columns of stuff right_rib_thickness = 2; left_col = 10 + center_adjust; right_col = width_mm - col_right; // column from edge plus hole radius // mounting holes to PCB edge 15.979999999999999mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 25-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.29x2.54mm, pin-PCB-offset 9.4mm, see http://docs-europe.electrocomponents.com/webdocs/1585/0900766b81585df2.pdf 44-pin D-Sub connector horizontal angled 90deg THT male pitch 2.77x2.84mm pin-PCB-offset 9.4mm 25-pin D-Sub connector straight vertical THT female pitch 2.29x2.54mm pin-PCB-offset 9.4mm 62-pin D-Sub connector straight vertical THT male pitch 2.77x2.84mm pin-PCB-offset 9.9mm mounting-holes-distance 33.3mm mounting-hole-offset 33.3mm 15-pin D-Sub connector horizontal angled 90deg THT male.
- Strip, HLE-117-02-xxx-DV-LC, 17 Pins per row.
- -6.285113e+000 1.747200e+001 facet normal -0.688666 0.165341 0.705976.
- Normal -0.135125 0.297024 0.945261 facet normal.