fuzzer question (polerity) apreciate help.

[blues_boy]

hey, first off im josh. im new to this forum and am hopeing to get some imput from you folks. thanks
ok, im gettin ready to build a fuzz face clone and  im gonna biuld the silicone verision so i dont have to get hold of some rare transistors.
iv heard if you use the silicone npn's its good to change the value of one of the resitors (470 to 3xx i think) but you also have to reverse the caps and the polerity. is all i have to do to change the polerity connecting the baterry backwards?
ill apreciate any help, thanks guys.

[Triffid]

take a look and the npn negative ground version of the fuzz face located at http://www.generalguitargadgets.com.  It rules with high gain silicon trannies

[al3151]

Welcome blues_boy,Check out the "Technology of" pages at GEO
http://www.geofex.com/
and SmallBear  for a matched set of germanium transistors.
http://www.smallbearelec.com/

[petemoore]

All polarized caps, diodes and transistors have to be 'right' for the circuit [npn or exact opposite] check their polarities/orientation.
 since theres no diodes in a FF [other than in the transistors]
 identify the emitter of the transistor, then as long as the base is in the middle [most Si's] put the emitter toward ground, [bottom of schematic].
 if you socket any polarized caps you can convert by reversing battery connections and caps, and swap to the 'other' type [npn/pnp or pnp/npn].
 Use non polarized input and output caps...
 Here's what I'd do...hook the battery neg to ground.
 use non polarized in and out caps.
 The 22uf [whatever uf value you like, I use 10uf sometimes]DC bypass capmake sure the - goes to ground.
 Trimpot Q2's collector resistor.
 different transistors .. try in it.
 Resistors of course [the only thing left] work the same either way around.

[Aharon]

Check the YAFF here
http://www.muzique.com/lab/main.htm

It's a fuzz that uses lower gain transistors closer in Hfe to the germaniums.
Aharon