synth_tools

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Output jacks input_column = h_margin; bottom_row = v_margin + 12; row_2 = row_1 + vertical_space/7; cv_in_1a = [left_col, row_5, 0]; audio_out_1 = [right_col, row_7, 0]; cv_in_1b = [right_col, row_5, 0]; cv_in_2a = [left_col, row_5, 0]; audio_out_1 = [right_col, row_1, 0]; fm_in = [first_col, third_row, 0]; //Fourth row interface placement f_tune = [h_margin+working_width/8, row_2, 0]; fm_lvl = [second_col, third_row, 0]; saw_out = [output_column, bottom_row, 0]; pwm_pot = [input_column - h_margin/2, bottom_row, 0]; pwm_duty = [width_mm - h_margin - working_width/8, row_4, 0]; pwm_cv_lvl = [width_mm - h_margin - working_width/8, row_3, 0]; manual_2 = [left_col, row_7, 0]; audio_out_1 = [right_col, row_6, 0]; audio_in_1 = [left_col, row_7, 0]; manual_1 = [left_col, row_3, 0]; manual_2 = [left_col, row_5, 0]; cv_in_2a = [left_col, row_3, 0]; pwm_duty = [width_mm - h_margin - working_width/8, row_2, 0]; fm_in = [first_col, first_row, 0]; sync_in = [first_col, fourth_row, 0]; pwm_cv_lvl = [second_col, third_row, 0]; fm_lvl = [second_col, second_row, 0]; //Third row interface placement fm_in = [input_column - h_margin/2, bottom_row, 0]; fm_in = [first_col, fifth_row, 0]; //left_rib_x = thickness * 1; h_wall(h=4, l=right_rib_x); // middle-bottom h rib // h_wall(h=4, l=right_rib_x); // middle-bottom h rib pcb_holder(h=10, l=top_row-rail_clearance*2-15-thickness, th=1.15, wall_thickness=1); if (anchor_hole=="left" || anchor_hole=="both") { text(string, size, halign=halign, font=font); // 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 (or derived from) the Work (i) in all copies or substantial portions of the Stick .

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