Whisker Biscuit - Runoffgroove.com

culturejam · Post by **culturejam** » 10 Apr 2011, 19:24

I whipped this up yesterday, and Mr. B Tremblay of Runoffgroove.com has reviewed the schematic and layout and given it the thumbs up.

PCB transfer art is at 600dpi. The PCB dimensions are approximately 2.15" x 1.25". All the necessary files are in the zip archive attached.

Note: the schematic symbol for Q2 should be that of a darlington BJT, but I couldn't find one that worked right in Eagle, so I just used a plain old BJT symbol.

Note 2: Mr Tremblay says that he recently built one with slightly different tone control values, so you might want to try 22K for R8 and R9, and 15n for C4.

Note 3: I omitted the optional "smoothing" caps from the original schematic. Both are 47p and go in parallel with R3 and R10, if you desire to add them.

Greenmachine · Post by **Greenmachine** » 10 Apr 2011, 21:37

What does it do?

Fredenando · Post by **Fredenando** » 11 Apr 2011, 01:16

The Whisker Biscuit is a hybrid of the Bazz Fuss and the Big Muff Pi. A single Bazz Fuss stage replaces the two clipping stages of the BMP. Smooth, super-long sustain, and good clean-up with the guitar volume knob make this circuit an interesting alternative to the standard BMP.

culturejam · Post by **culturejam** » 20 Apr 2011, 17:08

Verified!!

Man, this thing smokes!!!!!!

culturejam · Post by **culturejam** » 24 Apr 2011, 03:36

Here's a vero layout (not yet verified).