big muff tone control

[pazuzu]

hey guys, i want to add the tone control from this to a circuit i have on my board right now, from what i can tell in the schem everything left of the tone is the distortion part of the pedal. so my question if my interpretation is right is would i need to add the transistor, resistors, and output cap (don't need volume control), or can i just use the pot, the 2 caps, and the 2 resistors?

and if i need the transistor can i substitute any npn?

[anchovie]

Depends on how big your input signal is. The Big Muff tone control is quite lossy so the transistor is to boost the signal back up again. If you had a huge input signal to begin with (e.g. if you were clipping on the power rails rather than with diodes) then it might not be necessary.

Any silicon NPN should be fine.

[pazuzu]

i am using it at the end of a npn boost with diode clipping, so yes, i want to keep it up. thanks. already added the pot control to my board so i'll stick the trans on there too.