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In Reply to: RE: Question on a tube receiver warmup posted by onemug on April 11, 2014 at 09:05:40:
You most likely have a weaker tube in the MPX that corrects itself as it stays on..Do this..When you put it in mono,do you still get the warble on startup? If so,we can safely assume it's in the mpx and the 6BL8 and the 12AT7 in the rear are the most common failures on those.Your alignment may be slightly off if you have to change tubes but not always.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
Edits: 04/11/14
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Follow Ups
- Your first inclination was correct. - Michael Samra 10:52:15 04/11/14 (3)
- Bingo... - onemug 11:49:13 04/12/14 (1)
- RE: Bingo... - Michael Samra 14:11:36 04/13/14 (0)
- Thanks Michael, - onemug 13:05:32 04/11/14 (0)