From the Lovepedal spiel:
Lots of players use it like an OD pedal or full on fuzz, even distortion.. Roll back the guitar's volume and you're left with a lively shimmer atop your guitar and amp's identity. Amazingly, this happens to an appropriate degree throughout the pedal's range, and without the annoyingly excessive boost in volume that many overdrive pedals generate. And, yes, it's dead quiet.
The Fuzzmaster is a VERY sweet, smooth, silicon transistor based, fuzz that is warm, organic and sings with sustain. While it has an UN-mistakable vintage tendency, it also has a unique voice. Vintage Fuzz Face tonal heaven and everything in between, even tweed amp tones are in there.
The traced schematic:
The last layout (Rev 2) seems to be fine so if you're building it don't worry, but it occurred to me that if I move a couple of the resistors around then I can save an extra column and so the following revised layout does that. In fact if you get rid of the completely unnecessary 100n filter cap at the bottom right hand side you could save another column as well. I'll leave that up to you though.
And a final compact version without the unnecessary 100n filter cap. Just build whichever one you like! :o)
Update: Schematic and layout now done from the corrected PCB layout. As an option try 33pf-47pf caps between collector and base on both transistors to help smooth things out.