Labels Milestones
BackCases) 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 (see e.g. Https://www.ctscorp.com/wp-content/uploads/206-208.pdf E-Switch slide switch, EG series, SPDT, http://spec_sheets.e-switch.com/specs/P040047.pdf Inductor, Sunlord, MWSA0402S, 4.4x4.2x1.8mm, https://sunlordinc.com/Download.aspx?file=L1VwbG9hZEZpbGVzL1BERl9DYXQvMjAyMjExMTUxNDQ4MDU0NTQucGRm&lan=en Inductor, Sunlord, SWPA4020S.
- 8.0x6.3x5.3mm (https://productfinder.pulseeng.com/products/datasheets/SPM2007_61.pdf SMT Gate Drive Transformer, 1:1:1.
- Normal -0.0962896 -0.976223 0.194209 facet normal.
- Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/QFN_44_05-08-1763.pdf), generated with kicad-footprint-generator.
- 0.865139 0.246453 facet normal 0.778621 -0.416182 0.469619.
- 21.7538 facet normal -0.284751 0.938727.