DoD Death Metal Pedal mod inquiry

[MrGuitardeath]

This is actually one of the best pedals I've ever used BUT it has no GAIN control and is far to noisey due to the junky 4558's they use in them.

If I use a pot on the clipping diodes, will I be able effect the level of gain?

I tried to get the people at Dod/Digitech to re-release the pedal with the added gain control but no shocker, they weren't interested. IMO this would be the most widely used pedal if it only had the gain control and used better op amps.
Anyway, will my proposal work?

[shanter]

http://www.diystompboxes.com/cgi-bin/webbbs_scripts/webbbs_config.pl?read=163

search function

[LP Hovercraft]

What Would Rip Glitter Do?

[MrGuitardeath]

Cool thanks for the link.
Incredibly easy mod too. This with an op amp job should bring out this pedals true potential.......

[j.frad]

I just did this mods and I have to say it works really well! It makes the pedal a lot more "controllable". Funny thing, though, changing the gain completely changes the EQ settings which then have to be reset, a low gain makes you lose lots of highs that come back when you set the gain back up.
My main problem with this build was to find out where to put the pot...I had to find a small pot,and I ended up drilling the hole on the side of the pedal, which doesn't fit in it's original box anymor.! oh well...

[ViolenceOnTheRadio]

Hate to revive a dead thread but I came across this on google while looking for info on this pedal since I have a couple of them laying around and now useless to me yet not worth selling in today's economy. They desperately need a distortion control!
For the life of me, I can not find a 120K resistor on these pedals associated with what I've determined to be the second op amp. Merely 100K which based on the circuit traces, I can't make heads or tails of due to this circuits irate architecture but it's of course directly under the op amp.

Can anyone validate this being the appropriate op amp before I start the series of mods?