Based on the MXR Distortion Plus/DOD 250 with an added tone control and a few other tweaks. I kept the same gain knob with a frequency response that changes as you adjust but made it functional in a more usable range. Silicon diodes for more output volume. Uses half a dual op amp instead of a single and is socketed for tonal variation experiments if so desired. All crammed into a tiny 1590A enclosure. True bypass with polarity protection, like all my mini pedals runs off 9v adapter only (center negative 2.1mm). Current draw ~3mA.
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