I found someone's ptp fuzzface(?) And it sounds odd

[HoLeeFuk]

I was traveling other city last week and bought this pedal at local spot
Store owner mentioned  one of his customers built this with a kit from "some old pedal company"
Tho i don't know anything about fuzz circuits and anything with pedals
The components inside here seems odd, especially that black tophat(?) TRs
Can't find any datasheets online, pedal sounds very weak although sounds pretty
interesting to me.
Can anyone point it out what did builder was trying to do?
I will really appreciate of any guesses or thoughts. Thank you!!

[italianguy63]

Tophats are Russian.

MP39B and maybe MP115... both low gain hfe.  (less than 60 each).. that would account for it being some sort of low gain fuzz.

The clipping diode pair is interesting too.

MC

[fowl]

It seems based on, but not the same as a Fuzz Face.  The backs of those pots are not solderable, they can be if you sand off the gold-colored plating, but that was not done here.  So you have two suspect ground connections, could cause some issues.  I would desolder lug 1 of both pots, and wire them to one of the jack sleeve conections.

[anotherjim]

It's positive ground. Why is the fuzz pot cap negative going to ground? Probably crackles the pot.
Pots & jacks relying on the enclosure for ground continuity. Doesn't that tag strip have lugs that are screwed down? I'd use those for ground wire links.