Tantalus question

[captntasty]

I recently built the Tantalus from ROG and have a quick question.  What purpose do the 47pf and 120pf caps serve?  Are they preserving or introducing some high frequencies back into the circuit?

http://www.runoffgroove.com/tantalus.html

[WhenBoredomPeaks]

From the very same site you linked:

I have to admit, sometimes the high end of a Fuzz Face type can be a little jagged. If you look at the circuit, it's no wonder why! There is nothing contouring the high frequencies, at least within the human range of hearing. I stuck a 47pF cap in parallel with the supply resistor to the first transistor and added a 120pF cap from the second transistor's collector to base. These eliminate the super-high frequencies without killing the sound. The 47p really hasn't much effect to the tone, but reduces a good bit of hissing. The 120p may need adjusted to your taste. This shapes the highs a bit and removes some of the harsher sounds. Making it a little smaller will add some highs back in, making it larger will round of the sound more.

[captntasty]

 

my bad....