Adding a control for fuzz to a DAM Meathead

[jacobcarpet]

Just experimenting with fuzz pedals, and wanted to add a control to lower the fuzz on an experimental DAM Meathead. It's just a tagboard experiment, and I'm using this layout.

http://tagboardeffects.blogspot.com/2010/02/dam-meathead.html

Anyone have any suggestions? I've already added a tone circuit via a layout for the Big Muff Pi tone control I found in a quick google search.

Thanks for any suggestions.

Jacob

[roseblood11]

It's a fuzz face...
And there's a thread about all the different versions of the Meathead, including those with three knobs, over at the forbiddenforum

[nocentelli]

Weirdly, this exact same question was asked there also in the workbench forum: Here's what I said -

The Meathead is a fuzzface (with a couple of value changes and some tiny caps the base + collector on both trannies to smooth that silicon harsh) so to add a fuzzface gain pot, just remove the Q2 emitter resistor (1k) and  Q2 emitter cap (10u) and replace them with a 1k pot with lug 3 wired to the Q2 emitter, lug 1 wired to ground, and the 10u cap wired between lug 1+2 - The max gain will be the same as the stock Meathead, but you will be able to lower the gain.

[jacobcarpet]

Thanks I'll give it a try. Sorry I didn't look in the other folders. I'll search a little more for more info. Thanks.

[petemoore]

  The FF can't drive much, the BMP tone control has big passive losses. 'It' starts getting away from being a FF once a TC is added, perhaps a buffer to drive some current through the TC....
   Otherwise, FF gain control is worth a lookat, the *1k/AC bypass cap set the gain/frequency in the Meathead.
  Just a look is good though..because the guitar volume 'can' be a gain control with the FF. as shown with preset *gain, try using the guitar volume. A whole other thread about PU's and Control Pot values may or may not be the thing, also worth taking a lookat, before and after trying it out. It should clean up at the guitar volume control. The way the guitar/FF circuits interact can be altered to fascilitate improved tone/gain control.