I'm no engineer, but I recently had a similar problem. I bought a turntable and hooked it up to my MFA preamp, which has had very little time spinning vinyl. It sounded great at first but started to vary the volume without any help from me. I suspected that my 1990 preamp needed to have the selector switch cleaned out. I took it to a trusted tech and he cleaned it out so that it now sounds like new. Easy fix for very little money.
Help with a Superphon Preamp problem?
Hi everyone.
I have a Superphon Revelation. Here's the situation:
1. When I first plug it in it works nicely with the phono selected.
2. After a while the Right channel struggles, essentially "crapping out" to use the techincal term.
3. The other inputs continue to work fine.
4. If I unplug it for a while, the phono input works again for a while.
I am unlearned, but I am guessing a capacitor in the phono chain?
I have a Superphon Revelation. Here's the situation:
1. When I first plug it in it works nicely with the phono selected.
2. After a while the Right channel struggles, essentially "crapping out" to use the techincal term.
3. The other inputs continue to work fine.
4. If I unplug it for a while, the phono input works again for a while.
I am unlearned, but I am guessing a capacitor in the phono chain?
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