Fuzz Face help, bc108, analogman, newbe

[msurdin]

Hi,

So I have been having some trouble. I want to build a fuzz face. I love the sound of the sun face with bc108's that analog man makes. I have been trying to find out what other parts and their values go with it. On ggg it says to replace the 470 ohm transistor with a 330. Becides that change what else would I do?

I will be running this with a power supply. I hear fuzz faces sound different with a power supply. So Would I maybe change the values of parts to make it sound how it would with a battery?

Thanks

Matt

[George Giblet]

The 330R/470R changes the output level a bit.

To tweak the sound you can adjust the 8.2k resistor.  Usually best when the voltage on Q2's collector is about 4.8V.

[zjokka]

just build a silicon fuzz face setup on a breadboard and plug in the bc transistor,
then just take it from there.

how could you be in trouble when you haven't started building it yet? only takes 30min max

[GREEN FUZ]

Why don`t you try the multi-face at runoffgroove.http://www.runoffgroove.com/multiface.html
Lots of fun to be had trying different configurations of transistors and capacitors. You can still use the bc108`s if you like. It is ideal if you want to tweak the circuit to your own personal tastes and a great way to learn how each component interacts.

[jonathan perez]

check out the fuzz face page at GEOFEX