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In Reply to: RE: Serious Micro-Phonics and Hum from Citation V posted by mr9iron on July 7, 2012 at 11:08:19:
The tweeter comment was only intended as a general warning about using the amp in its present condition. Based on what you've said, I wouldn't power it on again without dummy loads and a 'scope. Anyway, if the NFB connections appear good, I think you'll need a more experienced hand to go in and troubleshoot. Not to state the obvious, but have you discussed this with Jim McShane? If he's not able to help over the phone, it would seem you only have a few alternatives. One would be to pack it up and send it to Jim for a look. The other would be to locate a local shop or vacuum tube afficionado who will look at it, preferably someone willing to consult with Jim while investigating the problem. Maybe if you put out a general distress call here on the tube forums, someone can recommend a resource in your area.
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Follow Ups
- RE: Serious Micro-Phonics and Hum from Citation V - Triode_Kingdom 13:32:42 07/07/12 (1)
- RE: Serious Micro-Phonics and Hum from Citation V - mr9iron 14:42:41 07/07/12 (0)