Hey Trem.. could be power tubes , try putting some contact cleaner on the pins and giving them a gentle scrub with a tooth brush , push the pins in and out a few times in their sockets , is the drop off there in all three channels ,if not then it could well be a pre amp tube the deville has 3 12ax7's does it not , any different smell eminating from the amp , , ahh the joys of tube amps , by the way Trem , are the original groove tube 6l6's still in there .. i seen those fail early before .. 6S9L
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Marty DiBergi: "This tasteless cover is a good indication of the lack of musical invention within. The musical growth of this band cannot even be charted. They are treading water in a sea of retarded sexuality and bad poetry."
Nigel Tufnel: That's just nitpicking, isn't it?