Insanity Box by Aron Nelson/Jack Orman.
Great sounding fuzz!
Reminds me of a big muff, only it has more clarity and gain. :D
Based on
this schematic.
The layout turned out a bit messy and very crowded.
I wanted to make the layout 1590BB friendly so..
But at least it works, I built it today so it's verified. :)
/ Fredrik
check out my building blog at www.parasitstudio.se