Fuzz pedal i built isnt working, anyone care to try and help me?

[Treutone]

I jsut finished a geranium fuzz face clone and there isnt any output but it bypasses cleanly.  I tried both ac and a 9v battery and nothing.

thanks in advance for any help.  Also please try and be as specific and dumb it down as much as possible for me, this is my first pedal from scratch besides a feedback loop and some mods.

heres alink to the schem
http://generalguitargadgets.com/diagrams/fuzzface_lo_pn_3pdt.gif

and heres a gutshot if that helps

[Treutone]

.

[Ry]

Welcome! 

Have you tried using an audio probe to see where the signal is lost in the circuit?  It's your best bet at this point in debugging.  Check out the 'Debugging Page' link at the top of this forum, there is information in there about building and using one.

[Treutone]

no, i dont have anything like that  , ill try making one tonight

[petemoore]

  I think I may have found the problem...PNP Neg. Gnd. ...I haven't read but once where it wasnt'...
  I know I don't have a solution for that.
  NPN Neg. Gnd. has a PG Track record for firing up.
  Also PNP Pos. Gnd. works when wired correctly.
  For some reason I think there may be another problem though, most of the PNP Neg FF problems were like oscillation or...
  Voltage readings may tell alot about what's going on, but I don't know of any real help  for PNP Neg Gnd. other than conversion PNP pos. Gnd., which is quite easy, follow the schematic for the most certain positive results....

[Dragonfly]

I jsut finished a geranium fuzz face clone and there isnt any output but it bypasses cleanly.  I tried both ac and a 9v battery and nothing.

thanks in advance for any help.  Also please try and be as specific and dumb it down as much as possible for me, this is my first pedal from scratch besides a feedback loop and some mods.

hi,
   please don't take offense to this, as its only offered as constructive criticism and a "possible" solution. looking at the soldering job in the photo, it seems like you may be new or semi-new to soldering... its a bit messy. the reason i mention this is that people that aren't real experienced at solding will often use too much heat, or hold the iron on the part for too long, and germanium transistors are VERY sensitive to heat. its easy to "kill" an expensive transistor if youre soldering without a heat sink, or spend too much time hitting it with the iron.
   now that might not be the problem with your pedal, but it "is" something to watch out for in the future....another possibility is that you may have installed the tranny's wrong...did you double (and triple) check that you were connecting the emmiter, base, and collector of each tranny to their proper place? (also...in the future, id suggest installing sockets for your transistors...that way you dont burn 'em up, and can also experiment with different types and hfe's, and find what works best for you...
   anyway, best of luck...try building the audio probe and "teching" it out with that.... 

andy

[Treutone]

alright, i made one of the probes, what should i be hearing when i touch the solder points?  the guitar coming through or just some staticy noise?

[nightingale]

TT,
Not trying to insult you either. As dragonfly mentioned, the transistors might have been cooked by your soldering iron. 
Also,
In the pic you posted: it looks like the solder "node" on the bottom right of the stomp switch could be cold?
It just caught my eye when I looked at the pic,
best luck man,

[Connoisseur of Distortion]

if you can, post a pic of both sides of the board. might help.