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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 good for sharing configurations. * @todo Add a front-panel PCB d40f7ca1ca Experimenting with more panel layout ideas Binary files /dev/null and b/Images/IMG_6777.JPG differ Binary files /dev/null and b/Docs/precadsr_layout_back.pdf differ Binary files /dev/null and b/3D Printing/AD&D 1e spell names in Filmoscope Quentin/Panels/MAGIC.

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