The whiners are back. (Q & A).

I love for readers to write to offer their slant on some of the items that we've been discussing. A few months ago, a reader was having trouble with "whine" getting into his automotive VCR/TV system and we discussed several sources for that problem. Reader Chuck Budack said that he had a similar problem between his stereo control "head" and his external amplifiers.

He solved his by using an "Audio System Ground Loop Isolator" from RadioShack (catalog number 270-054). He describes the device as a pair of ...

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