Temuk: Thanks a million, You've given me allot to consider. In front of the preamp seems best, as long as I can still control channels with the foot switch. It will take some research on my part before beginning anything, I first need to learn about draining power...  Thanks again, Andy

Here's the schematic for the distortion unit, (under QTA / QDD)
http://www.artecsound.com/images/dimension/booster-wiring.gif

the Deuce Preamp
http://members.tripod.com/NatCade/schems/Peavey/dmvt1.gif

and power amp
http://members.tripod.com/NatCade/schems/Peavey/dmvt2.gif

Hello,

I have an idea which hopefully makes since to someone on here. I own an old Peavey Deuce guitar amp that has a SS preamp and tube power amp. The clean tones are excellent (for me), the overdrive lacks crunch, as the gain is increased the distortion is soft and fuzzy (common for these amps). I've been using this http://www.artecsound.com/qdd.html onboard distortion gadget installed in my guitar and getting excellent results.

I now have a new guitar and the onboard unit will not fit, I'd like to install the unit inside my amp if possible, either run in front of the preamp, bypass the preamp or hardwire it into the effects loop. Any help or ideas would be appreciated.  Andy