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Post by southbound57 on Oct 21, 2014 11:39:45 GMT -7
I have a 1x10 monza combo and have had this issue twice now. The sounds will simply drop off from the amp after playing for about 30 minutes or so. Just loses volume with a small change in the overall "white noise" of the amp. Happened to look at the tubes when it happened today and I believe one of the el84 was glowing red hot, entire tube was red compared to the others "normal" glow. Turned it off and let it sit and everything went back to normal. Does signify a bad tube, bad for the amp. First time having a tube issue so I thought I would ask more experienced people then myself. Thanks in advance. Matt
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Post by BritInvasion on Oct 22, 2014 8:08:50 GMT -7
That is what is known as "red plating". Change your output tubes ASAP. If that tube blows it will most likely take out your fuses and possibly something else.
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Post by pcns on Oct 22, 2014 18:21:02 GMT -7
Power tubes, check your rectifier too Todd
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