MAD PROFESSOR: Stone Grey Distortion

Another CMOS based distortion, this time from Mad Professor - the Stone Grey Distortion.  Details available on Aion FX, including schematic.  

Not that the original uses JFETS acting as diodes for clipping, which means very little if any difference when compared to a regular diode.  If you want to use JFETS, details are in the Aion build documentation - and there's room for it on the layout.  I initially started with JFETS on the layout, but if a 1N914 does the same thing...  

MAD PROFESSOR STONE GREY DISTORTION - VERO LAYOUT

According to the internet, the Stone Grey Distortion is based on this circuit from an old Japanese electronics book.  The first iteration was by Bjorn Juhl of BJFe called the Cliff Hanger, before if was licensed to Mad Professor.