synth_tools

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Thickness-0.02; // Width of module (HP) width = 24; // [1:1:84] fm_in = [input_column - h_margin/2, bottom_row, 0]; pwm_pot = [input_column - h_margin/2, row_1, 0]; pwm_in = [input_column + h_margin/2, bottom_row, 0]; pwm_duty = [width_mm - h_margin - working_width/8, row_3, 0]; c_tune = [width_mm/2 + h_margin, top_row, 0]; f_tune = [width_mm/2 - h_margin, top_row, 0]; f_tune = [second_col, second_row, 0]; //Third row interface placement f_tune = [second_col, second_row, 0]; //Third row interface placement fm_in = [input_column - h_margin/2, row_1, 0]; audio_out_2 = [right_col, row_3, 0]; cv_in_2b = [right_col, row_7, 0]; audio_out_1 = [right_col, row_6, 0]; cv_1b_atten = [right_col, row_5, 0]; cv_in_2a = [left_col, row_5, 0]; cv_in_2a = [left_col, row_2, 0]; pwm_in = [input_column + h_margin/2, row_1, 0]; fm_pot = [input_column + h_margin/2, row_1, 0]; fm_pot = [input_column - h_margin/2, bottom_row, 0]; c_tune = [second_col, second_row, 0]; //Third row interface placement pwm_in = [width_mm - h_margin - working_width/8, row_2, 0]; fm_lvl = [h_margin+working_width/8, row_2, 0]; pwm_in = [input_column - h_margin/2, bottom_row, 0]; pwm_duty = [second_col, second_row, 0]; //Third row interface placement sync_in = [first_col, first_row, 0]; //Second row interface placement f_tune = [second_col, fifth_row, 0]; //left_rib_x = thickness * 1; h_wall(h=4, l=right_rib_x); // bottom horizontal rib // h_wall(h=1.6, l=right_rib_x); // 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 https://www.schmitzbits.de/ms20.html which is implemented by public license practices. Many people have at least one of.

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