EHX Graphic Fuzz

Started by soggybag, June 03, 2010, 05:41:38 PM

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soggybag

Has anyone seen a schematic for the EHX Graphics Fuzz. I'm curious how this works. I'm guessing it has some sort of TS type distortion section, the EQ. And there's the dynamics thing, which is a very interesting addition not seen in many fuzz boxes.

MikeH

It's been a while since I've played with one- I seem to remember it having a fuzz on/off switch, and with the fuzz off it basically acted like a graphic EQ.  So my guess it's more like a graphic EQ with some fuzz/clipping incorporated.
"Sounds like a Fab Metal to me." -DougH

Brymus

What I noticed working on the GEO 7 band EQ is that if you add too much gain in front of the EQ section you start getting a fuzzy type distortion with the bands boosted.
I am guessing its the op amp clipping and not the Qs(5088s) but I am not sure it could both or either.
And it would also be rather simple to add some diodes to the FBL that gives the bands their boost.
Or even after shunted to ground.
I'm no EE or even a tech,just a monkey with a soldering iron that can read,and follow instructions. ;D
My now defunct band http://www.facebook.com/TheZedLeppelinExperience