Size of Board: 45mm Width x 29mm Height (1590B Box Okay!)
This layout is to build Fuzz Face with Silicon NPN with center negative (standard boss) power.
Germanium NPN version can be build with some value adjustment.
Trimmer is to adjust the bias of the 2nd transistors to your taste.
Hfe for Q1 should be 70~90
Hfe for Q1 should be 90~130
Well...some like to have equal gain but i felt this range give the best oldies feel.
Socket that transistor to experiment with different transistor to find your base.