Korg late MS20 filter
Nothing fancy, just my own version of that filter. Uses opamp buffers instead of the darlingtons.
And 3080 instead of 13600. This saves a few resistors. (I was lazy.) I replaced the string of three
diodes in the original filter with a green LED. I don't know if that alters the sound much, but the
circuit has the sound usually attributed to this type of filter. I raised the gain of the feedback so
that one can make some weird noises with it.
MS20 clone