What will be the best use of theese trannys?

[syndromet]

Hi,
I just ripped apart my old hifi-amp, and it contains the following transistors:
bc547c
2*bc640
2*bc556
bc337
bc548c

What pedal would be the best place to use this type of transistors?

[Coriolis]

Hi!
Well, they are probably either npn, pnp or a bit of both (don't know these types in detail),
and I guess you could look up their datasheets (google) to get an idea what you have on your hands.
If they are low to medium gain (hfe) maybe they could be used in a Si- Fuzz Face.
Or in just about anything else, but you knew that, right? 

C