Hi,
i'm an ignorant regarding fuzzes and old transistors technology...i have some of these around,and like to know if it's worth start to build a fuzz with them...
Thanks
Maneco
I'd say they'd be good for an NPN Fuzz Face. Probably make a mellow-sounding NPN Boost or LPB as well.
With the Fuzz Face, you'll need to mess around with the biasing of Q2, though. Really need that 4.5 volts on the collector of Q2 for it to sound good.
Test the hfe and leakage if you can. That's pretty easy to do even without a transistor tester if you use the setup described at Technology of the Fuzz Face.
che maneco!!. Parece que de esos habia bastantes por esta zona de america porque yo tambien consegui unos cuantos. Tienen mucha mas ganancia que los ac128 que tendria que llevar un fuzz face. Yo los uso para boosters de germanio y andan barbaro. Si vas a hacer un fuzz, como siempre, tenes que llevar el segundo transistor a 4.5v. Si haces algo, decime que te parecio. Saludos desde Neuquen, patagonia, argentina.
Thanks for your kind replies... :D
Maneco
I use the AC187K in my Fat-Face as a second transistor.
First one is BC109.
AC187K really rocks in FF clone. There is so much gain that
you can't make the clean sound with guitar volume pot.
What you get is excellent crunch for riffs and blues leads and
when you max the guitar pot, sound become so fat with
so much sustain - perfect for leads. Sound is similar to
my RAT clone. I call it Fat-Face ( RAT-Face could be better name ;-) ).
It is really amazing what you can get with just two transistors
and couple of other parts.