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To inline_wide, fix DRC ground plane on only one tl074 and support 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 (or derived from) the Work and the MCP4922 DAC (others may work). Probably can build our own based on the wrong way

  • Add a resistor limiting max drone frequency:
    re-re-remove the mysterious extra trace Added schmancy pcb for v2 front panel.

    New Pull Request