Hey all. I'm new to this forum, and to the Mesa world in general.
I recently picked up an F-50 combo in a trade, and I absolutely love the sound of it. I brought it home, gave it the compulsory warm up time, and ran it hard for a good 45 minutes. It performed flawless, with the exception of a little hum from the reverb (which I've read is kinda normal).
I decided after playing it that I would go ahead and retube it, as it still had the stock Mesa 6l6GC STR 430s in it, which I was told have been out of use for about 8 years. I ordered a set of STR 440s, got them, popped them in, warmed them up for about 20 minutes, and went to town. About 15 minutes in, my low end dropped out completely. I checked the tubes (with the amp on) and the leftmost (not sure of position) of the pair was completely red. I immediately turned the amp off and contacted Mesa, who said they would ship a new set.
After the amp had cooled, I removed the new tubes and replaced the old. No issues. Let the amp sit idle for a good half hour with no issues. Played for another half hour with no issues. Tried the "bad" tubes again to see if I could recreate the problem, nothing.
Anyone ever have this happen with a new set of Mesa tubes, or have any suggestions?
I recently picked up an F-50 combo in a trade, and I absolutely love the sound of it. I brought it home, gave it the compulsory warm up time, and ran it hard for a good 45 minutes. It performed flawless, with the exception of a little hum from the reverb (which I've read is kinda normal).
I decided after playing it that I would go ahead and retube it, as it still had the stock Mesa 6l6GC STR 430s in it, which I was told have been out of use for about 8 years. I ordered a set of STR 440s, got them, popped them in, warmed them up for about 20 minutes, and went to town. About 15 minutes in, my low end dropped out completely. I checked the tubes (with the amp on) and the leftmost (not sure of position) of the pair was completely red. I immediately turned the amp off and contacted Mesa, who said they would ship a new set.
After the amp had cooled, I removed the new tubes and replaced the old. No issues. Let the amp sit idle for a good half hour with no issues. Played for another half hour with no issues. Tried the "bad" tubes again to see if I could recreate the problem, nothing.
Anyone ever have this happen with a new set of Mesa tubes, or have any suggestions?