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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 either internal or external clock sources cycle between 0v and 5v max // gate out (j4/j10) // clock in (j2/j11) // casc out (j14/j15 // reset/casc in (j1/j13) // gate out (j4/j10) // clock out (j5/j12) // glide manual (rv16 // 1 rotary switch - 7mm, with 3-4mm extra space available - mini toggle pushbuttons: ample space above pcb micro toggle: probably too tight; could work with spacer but it would go between MS4 and MS1. Samba duro - played very fast! REP: B B B B B B B B B B * < -- * played every other Contributor (“Indemnified Contributor”) against any losses, damages and costs.

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