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= 10.1+center_adjust; //mm second_col = width_mm/2; vertical_space = height - v_margin*2 - title_font_size; working_increment = working_height / 6; // generally-useful spacing amount for vertical columns of stuff col_left = thickness * 1; right_rib_x = width_mm - thickness*2; // draw a "vertical" wall 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 this script here. Arrow_indicator = true; smooth = 20; // [0:0%, 10:10%, 20:20%, 30:30%, 40:40%, 50:50%] // Width of module (HP row_2 = row_1 + vertical_space/7; row_6 = row_5 + vertical_space/7; row_3 = working_increment*2 + row_1; row_3 = row_2 + vertical_space/7; row_3 = working_increment*2 + row_1; row_3 = working_increment*2 + row_1; row_3 = working_increment*2 + out_row_1; out_row_4 = out_working_increment*3 + out_row_1; out_row_4 = out_working_increment*3 + out_row_1; out_row_7 = working_increment*6 + out_row_1; out_row_5 = working_increment*4 + out_row_1; out_row_6 = working_increment*5 + out_row_1; //special-case the top (mm h_margin = thickness*2; v_margin = hole_dist_top*2; Potentiometers: - One socket connection is on the Gate In jack and switching ground contact, horizontal PCB mount, https://www.neutrik.com/en/product/nc3mamh-ph speakON Combo, 2 pole combination of speakON socket and 6.35mm (1/4in) stereo jack, switched, gold plated contacts, https://www.neutrik.com/en/product/nmj6hfd2-au M Series, 6.35mm (1/4in) mono jack, switched, with half threaded nose, https://www.neutrik.com/en/product/nsj12hh-1 Stacking Jacks, Stereo dual jack, full nose, https://www.neutrik.com/en/product/nsj12hc Stacking Jacks, Mono dual jack, quick fix nose, https://www.neutrik.com/en/product/nsj8hl Stacking Jacks, Stereo dual jack, full nose, https://www.neutrik.com/en/product/nsj8hc Stacking Jacks, Mono dual jack, quick fix nose, https://www.neutrik.com/en/product/nsj8hl Stacking Jacks, Stereo dual jack, quick fix nose, https://www.neutrik.com/en/product/nsj12hl Combo I series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, replaces NL8MD-V, https://www.neutrik.com/en/product/nl8mdxx-v 4 contacts, 3.5mm audio cui horizontal jack stereo TRS 3.5mm, horizontal, through-hole, , circular holeshttps://www.cui.com/product/resource/sj1-353xng.pdf TRS audio jack.

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