EHX Graphic Fuzz??

[Jaicen_solo]

Forgive me if it has already been covered, but can anybody point me in the direction of a schematic or layout for the EHX Graphic fuzz?? Seems like quite an interesting piece of kit and ripe for mods! 

[John Lyons]

I would like to see it as well!

John

[mrslunk]

As would i.
I own one and am severly unimpressed by it. Modifications/reimaging could make it a useable piece of hardware..
But i'm really not interested enough to trace it out myself

[gigimarga]

I have an archive with a lots of EHX factory schematics, including the Graphic Fuzz (I found it on the Internet, but I can't remember where).
To avoid conflicts and problems (especially with Mr. Puretube), I don't want to post them here.
If anyone wants them, please email me (gigelmargel at yahoo.com) and I will send you (and you can post, if you are enough brave...).

[aron]

Schematics that are redrawn/traced can usually be posted, unless the manufacturer doesn't want their schematics posted at all. In know for EH, they don't want any factory copyrighted schematics posted.

[gigimarga]

Schematics that are redrawn/traced can usually be posted, unless the manufacturer doesn't want their schematics posted at all. In know for EH, they don't want any factory copyrighted schematics posted.

I don't have enough skills to redraw such complex schematics and as I don't want to create  any problems to the forum or to me...

[Tonemonger]

I've been digging out folders all day and I don't seem to have one.
I made one for a guy in the early 90's ,though we could have just mocked one up out of an opamp big muff and squeezed their graphic in the middle (which is probably all it is).
I don't seem to remember the early 90's too well either...I think I lived in Melbourne...

[fuzzo]

I have it to , in the same archive file. the design is pretty simple actually.

A fuzz/ovedrive circuit with an interessting Sutain/attack control that I didn't really get it. I may watch it again but I think it's close to a envellope filter to modulate sound witch pick attack.

then, you have a band EQ with AOP like things you can find in MXR EQ or Boss GE7.

I tried to redraw it some time ago but that was really hard to make something clean and readable , there's a lot of people in that pedal

 

[Lurco]

Why don`t you just send Jaicen an e-mail with the schemo???

Or print it on paper and send it to him in an envelope?
(like we did, 20 years ago...)

   

[Jaicen_solo]

Thanks guys, I've sourced a copy now. Much appreciation to all involved.
I'm a little disappointed to finally see the schem, there's a lot less going on than i'd anticipated!

[fuzzo]

This is the part I redrew from the orignal schematic I got. That shows just the drive part with sustain/dynamic. MAY CONTAIN MISTAKES !