A question about Mark Pole's Tone-bender with tone control

[yeeshkul]

Hello, i found this schema at this site http://www.diystompboxes.com/pedals/TB.jpg
I would like to know what is the reason for the capacitor 0.04 micro that is bridging 412+412 resistors (in between colectors of Q2 and Q3)
Thank you very much
Jan

[stomper]

Hi Jan,

I drew that  a few years ago.  If I am not mistaken, that capacitor gives more bass.  I found the Tonebender to be quite bright and the extra low end balanced it out.

There is a pretty hefty loss of volume when tacking on a passive tone circuit.   I remember there was still enough range on the volume pot to give adequate output.  I'd be interested to know how it works for you.
Mark

[WGTP]

If I'm not mistaken, that cap is a treble roll off, which in effect adds bass.  The 4.7uF cap can be increased up to 10 fold for added bass as well.   Crazy suggestion, but try it with BS250 P channel Mosfets. 

[yeeshkul]

Thank you guys for your help! I will definitely give it a try. A good idea!

[WGTP]

Whoops, I dont think a Mosfet will work for Q1.  Sorry.