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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Gettering turning black? posted by Jim in Blacksburg on January 12, 2007 at 10:46:40:
I don't know what exactly causes some tubes to turn black and other to remain the same. It's not a problem, however. Some tubes will even get little heat spots on top and perform fine. It does seem to run within certain brands and probably has something to do with their particular construction materials and techniques.
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Follow Ups
- Re: Gettering turning black? - Catch22 17:08:03 01/12/07 (0)