A few weeks ago I started getting screech noises from my EVH 100w. Around the same time, one of the power tubes started glowing like mad, leaving a burn mark on the inside of the glass.
Took the amp home, chopstick tested it. Sure enough, one of the preamp tubes had gone microphonic. Replaced that one and also replaced the burnt power tube as well as its pairing tube.
Played it maybe three times since then, everything seemed fine. Then after maybe 15 minutes of playing today, I start getting weird noises. Peek into the amp and sure enough, same power tube as before is glowing like a house on fire. Quickly shut off the amp. JJ logo printed on the tube looks burnt out, cant tell yet if anything on the inside got scorched as well.
Have two gigs abroad in five days, so I need to fix this ASAP.
Any clues where I should start looking? Will try to find a tech that can get it done pronto but figured it can't hurt to know what to look for from the get-go.
Took the amp home, chopstick tested it. Sure enough, one of the preamp tubes had gone microphonic. Replaced that one and also replaced the burnt power tube as well as its pairing tube.
Played it maybe three times since then, everything seemed fine. Then after maybe 15 minutes of playing today, I start getting weird noises. Peek into the amp and sure enough, same power tube as before is glowing like a house on fire. Quickly shut off the amp. JJ logo printed on the tube looks burnt out, cant tell yet if anything on the inside got scorched as well.
Have two gigs abroad in five days, so I need to fix this ASAP.
Any clues where I should start looking? Will try to find a tech that can get it done pronto but figured it can't hurt to know what to look for from the get-go.
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