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The body text, captions, sub-headers, etc. In AD&D 1e type faces Final revision; added custom DRC as project file c4e1c30b9b Add jlc constraints DRC; replace order number text main MK_VCO/Panels/luther_triangle_vco_quentin_v2.scad 302 lines // PWM duty // pots (all p160s): /* [Default values] */ // Four hole threshold (HP h_margin = thickness*2; v_margin = hole_dist_top*2 + thickness; h_margin = thickness*2; v_margin = hole_dist_top*2 + thickness; right_rib_x = width_mm - col_right - thickness; left_panel_spacing = (left_panel_width) / 2.5; slider_spacing = 12.5; // space between them right_panel_width = 12; // overkill; currently three 3.5mm jacks needing 8mm //calculated x value of exact middle of panel after deducting left/right sub-panels // top horizontal rib h_wall(h=4, l=right_rib_x); // bottom horizontal rib // middle horizontal rib // h_wall(h=4, l=right_rib_x); // one more 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.analog.com/media/en/technical-documentation/data-sheets/199399fc.pdf TO-92 2-pin leads in-line, narrow, oval pads, drill 0.75mm (http://www.produktinfo.conrad.com/datenblaetter/175000-199999/181293-da-01-de-TO92_Temperatursensor_PT1000_32209225.pdf Molded Japan Transistor Package 7x4x9mm^3, http://rtellason.com/transdata/2sb734.pdf Non Isolated Modified TO-220 7pin Package, see http://www.farnell.com/datasheets/5793.pdf Power Integration Y Package SIPAK, Horizontal, RM 2.54mm staggered type-1 TO-247-2, Horizontal, RM 2.286mm SIPAK Vertical RM 2.54mm IIPAK I2PAK TO-264-2, Horizontal, RM 1.7mm, PentawattF-, MultiwattF-5 TO-220F-5 Vertical RM 5.08mm TO-220F-2, Vertical, RM 2.54mm, see https://www.vishay.com/docs/66542/to-220-1.pdf TO-220-3 Horizontal RM 5.45mm TO-3P-3, Vertical, RM 0.9mm, staggered type-1 TO-220F-11, Vertical, RM 2.54mm, staggered type-2 TO-220F-15, Vertical, RM 5.08mm, see https://www.centralsemi.com/PDFS/CASE/TO-220-2PD.PDF TO-220-2 Horizontal RM 1.27mm staggered type-2 TO-220F-5 Vertical RM 5.45mm TO-3P-3, Vertical, RM 1.7mm, staggered type-1, see http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-to-220/to-220_5_05-08-1421.pdf?domain=www.linear.com, https://www.diodes.com/assets/Package-Files/TO220-5.pdf TO-220-5 Vertical RM 0.9mm staggered type-2 TO-220-9 Horizontal RM 5.45mm TO-3PB-3, Horizontal, RM 2.29mm, IPAK, see https://www.diodes.com/assets/Package-Files/TO251.pdf TO-251-3 Horizontal RM 5.08mm TO-220-2, Vertical, RM 0.9mm, staggered type-1 TO-220-5, Horizontal, RM 1.27mm, MultiwattF-15, staggered type-2 TO-220-4 Vertical RM 2.286mm SIPAK, Vertical, RM 2.54mm, see http://www.st.com/resource/en/datasheet/stp20nm60.pdf TO-220F-3 Vertical RM 0.9mm staggered type-1 TO-220-9 Horizontal RM 2.54mm TO-251-2, Horizontal, RM 1.7mm, PentawattF-, MultiwattF-5 TO-220F-5 Vertical RM 2.54mm staggered type-1 TO-220-5, Vertical, RM 0.97mm, Multiwatt-9.

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