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Back+ working_width/4, row_1, 0]; fm_pot = [input_column + h_margin/2, bottom_row, 0]; c_tune = [width_mm/2 + h_margin, top_row, 0]; f_tune = [h_margin+working_width/8, row_3, 0]; cv_in_2b = [right_col, row_7, 0]; cv_in_1b = [right_col, row_2, 0]; triangle_out = [third_col, third_row, 0]; saw_out = [h_margin + working_width/4, row_1, 0]; square_out = [output_column, row_2, 0]; fm_lvl = [h_margin+working_width/8, row_2, 0]; pwm_in = [width_mm - h_margin - working_width/8, row_3, 0]; pwm_duty = [input_column, row_2, 0]; } // Dinosaur Comics (alt tags+blog), CAD, attempt at OOTS (but that one fails due to referer checks 943ef1409b Fix getting a bunch of wires backwards Fix floating pin for Pause (J19/J18); the schematic is incorrect the current trace and bodge from the side (HP width_mm = hp_mm(h); difference() { union() { difference(){ color([.1,.1,.1]) panel(width); // waves out wall(h=4, w=width_mm-hole_dist_top-4); // one more to mount a circuit outside the full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on the footprint. Some options: ## Kassutronics Precision ADSR build notes Change C13 to 10 Alternative: Midi -> CV Alternative: CV from something else use a ground plane Change transistor footprint to inline_wide, fix DRC ground plane.
- Size 61x10.6mm^2 drill 1.3mm pad 2.5mm terminal block.
- HLE-141-02-xxx-DV-LC, 41 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf.
- 5.951017e-04 7.565925e-01 vertex -1.083054e+02 9.695134e+01.