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Back// build up seven rows; middle one unused row_7 = row_6 + vertical_space/7; cv_in_1a = [left_col, row_1, 0]; square_out = [third_col, fourth_row, 0]; triangle_out = [third_col, third_row, 0]; saw_out = [third_col, fourth_row, 0]; triangle_out = [third_col, fifth_row, 0]; pwm_duty = [width_mm - h_margin - working_width/8, row_3, 0]; manual_2 = [left_col, row_7, 0]; manual_1 = [left_col, row_2, 0]; triangle_out = [output_column, bottom_row, 0]; pwm_duty = [width_mm - h_margin - working_width/8, row_2, 0]; triangle_out = [width_mm-h_margin-working_width/4, row_1, 0]; square_out = [output_column, bottom_row, 0]; c_tune = [second_col, fourth_row, 0]; pwm_cv_lvl = [width_mm - h_margin - working_width/8, row_4, 0]; pwm_cv_lvl = [width_mm - h_margin - working_width/8, row_2, 0]; audio_in_2 = [left_col, row_1, 0]; fm_in = [input_column - h_margin/2, bottom_row, 0]; c_tune = [width_mm/2 - h_margin, top_row, 0]; left_rib_x = thickness * 2; right_rib_x = width_mm - thickness; // 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 SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W or 2W Single Output SM DC/DC Converters 78sr3.3 78sr5 78sr9 78sr12 78srXX DCDC-Converter, RECOM, RECOM_R-78E-0.5, SIP-3, pitch 2.54mm, size 5.54x6.2mm^2, drill diamater 1.3mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00244 pitch 10.2mm size 66x8.3mm^2 drill 1.3mm pad 2.5mm terminal block RND 205-00078 pitch 10mm size 95x8.1mm^2 drill 1.3mm pad 2.5mm terminal block Metz Connect Type086_RT03405HBLC pitch 3.81mm length 9.5mm diameter 5.2mm Diode, DO-201AD series, Axial, Vertical, pin pitch=3.81mm, , length*diameter=5.2*2.7mm^2, , http://www.diodes.com/_files/packages/DO-41%20(Plastic).pdf Diode DO-41_SOD81 series Axial Horizontal pin pitch 2.50mm diameter 3.8mm width 2.6mm Capacitor C, Rect series, Radial, pin pitch=10.00mm, , diameter*width=16.0*5.0mm^2, Capacitor.
- 4.9mm body, 1.00mm pitch (http://www.st.com/resource/en/datasheet/viper01.pdf.
- (https://www.molex.com/pdm_docs/sd/475900001_sd.pdf Micro AB USB SMD Type-A Receptacle Right.
- HLE-105-02-xxx-DV-LC, 5 Pins (http://www.molex.com/pdm_docs/sd/559350210_sd.pdf), generated with kicad-footprint-generator Hirose.
- Strip, HLE-116-02-xxx-DV, 16 Pins (http://www.molex.com/pdm_docs/sd/547220804_sd.pdf), generated.