2 transistor fuzz

[Gus]

A screen shot of a two transistor fuzz that you might remember


Put that in lt spice and adjust the parts

Adjust the crude pickup sim part and see what happens, maybe a humbucker 4.5H and 7k etc, change the cable cap(C4) and watch what happens
Adjust R4 and watch the bias/operating points
R10 guitar volume pot

Model the complete guitar bass and sim with the Fuzz

Note the selected controlled open loop gain of Q1 with the 10K 100ohm

[Cardboard Tube Samurai]

Sorry, but what's the purpose of this exercise for those of us who don't have the time to do all that?

[Gus]

It is about learning.

LT spice is available at the Linear Technology web site.

One will see thread after thread about FF type problems etc.

So if a person sims the FF like circuit a person can learn a lot about the guitar/bass interaction

The 2n2222 circuit in the screen-shot matches a real build transistor DC voltages