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In Reply to: Re: Yes, what is your preamp? posted by used-hifi on April 24, 2007 at 19:22:28:
Many things can cause a vintage tube preamp to act the way you describe.Old wax sealed paper coupling caps (or any 40 year old cap really) can go leaky once warmed up. Marginal 12AX7's? I have experienced your symptoms (sounded ok for a side or two then sucked!) with an Eico HF-85. It was cured through a re-cap job (the tubes tested super). Some of the carbon comp resistors in the phono section were replaced also.
It helped the fidelity all around.
--
Al G
Born To Tinker!
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Follow Ups
- Has it been serviced? - anumber1 19:35:12 04/24/07 (0)