Fuzzhead Fx Box of Germanium Mk. II

An updated version of a project I was tinkering with a couple of years ago. The idea was basically to find some use for some low leak USSR germaniums other than in Fuzz faces, Rangemasters and Tonebenders, And to do a germanium version of Zvex Box of Rock. Some biasing tweaks was necessary since BJT Ge's is a completely different animal to MOSFETs but the cap values in the signal path is more or less identical. Couldn't resist to add Boost switch so you can use it as a fuzz as well...and decrease the value of the low pass filter cap in the tonestack to 12nF since I found it a bit muddy with 22nF.

First version was positive ground but I used normal power supply for this version since I have to many unused MP38A transistors but other fairly low gain and low leak NPN germaniums should work as well.