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In Reply to: Re: Other things to check posted by pwalker on April 21, 2007 at 18:09:28:
One question:Are we talking about tubes in the old sockets, or in the new board?
I worked on Fender Bassman amp once, four output tubes. One pot set bias for all four. No matter which tube was in which socket, the one closest to the middle of the amp glowed fairly bright orange after an hour or so of playing, and the next one outboard glowed a little. The other two were always fine. Drove me nuts! Checked every passive component twice (all were within spec), put in a set of matched tubes, rewired the B+ lines to the output tubes, even CLEANED the tube sockets. It got better, but not completely cured. The final fix? New tube sockets, and all was just fine.
Yes, changing tube sockets can be a PITA, but, at least it's not a tube tester! (YIKES).
Good luck,
BT
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- Re: Other things to check - BrassTeacher 22:47:15 04/21/07 (0)
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