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1 : quality == "rendering") ? 0.25 : quality == "rendering") ? 0.25 : quality == "final rendering") ? 1 : quality == "final rendering") ? 0.1 : quality == "preview") ? 6 : quality == "final rendering") ? 1 : quality == "fast preview") ? 12 : 12; // overkill; currently three 3.5mm jacks needing 8mm //calculated x value of exact middle of panel after deducting left/right sub-panels // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // bottom horizontal rib // h_wall(h=4, l=right_rib_x); // middle-bottom h rib // h_wall(h=1.6, l=right_rib_x); // one more vertical to mount the circuit board to, dead center // one more vertical 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 either internal or external clock sources cycle between 0v and 5v max // gate out (j4/j10 // clock out (j5/j12 .

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