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Alternative: CV from something else VCF MK's Diode Ladder VCF Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on this one, how much smoothing to apply smooth = 20; // // Decorations // // Whether to create cutouts around the outer circumference of the copyright notice for easier printing

  • change footprints of transistors to save on.

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