Hey all. I got this preamp yesterday and the phono stage totally outshined my Cambridge Audio 540P phono pre.
As for the Linear control center, well it's got issues. After a thorough clean-out with DeOxit on the pot's and controls, it has a low background hum (about 60Hz I guess).
Now I would automatically suspect the filter cap's but the transformer (EI core) is vibrating a bit. I think this is a part of my issue. I cannot tighten it though since it appears to be permanently bonded to the bottom of the pre's case.
Does anyone know where I should start with this? I have no prints or schematics on it.
As for the Linear control center, well it's got issues. After a thorough clean-out with DeOxit on the pot's and controls, it has a low background hum (about 60Hz I guess).
Now I would automatically suspect the filter cap's but the transformer (EI core) is vibrating a bit. I think this is a part of my issue. I cannot tighten it though since it appears to be permanently bonded to the bottom of the pre's case.
Does anyone know where I should start with this? I have no prints or schematics on it.
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