Tube Amps / Music Electronics
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|8/6/2004 7:08 PM|
||How do I know if my tubes need to be replaced?|
Short of a failure, how am I supposed to know if I need to replace my power tubes? Are they like guitar strings where their tonal quality degrades, but the otherwise, operate fine.
|8/6/2004 11:27 PM|
Dan, you can put them in a tube tester or better yet substitute new ones but other than that things aren't really obvious.
Usually the power tubes lose emmision and deliver less and less power. Preamp tubes usually go till they die but sometimes they will act so flaky you know something's wrong.
So the short answer is that if the amp seems not to be as loud as it should it's time to consider the output tubes. If the tone is there and as loud as you expect then don't worry about it.
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|8/6/2004 11:28 PM|
That is exactly right. Like strings, they will continue to function after their tone has faded away.
If the amp has lost its sparkle, sounds a little dull, maybe not quite as strong, you ought to look for new tubes.
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