James Boyk wrote:

One thing I've discovered that's kind of interesting is that I can tell
when a device has a bad transformer just by putting a finger on the
chassis. It feels to me as though it's vibrating or trembling. Other
people don't seem to feel this.

So now power transformers degrade the audio as well? Have you ever
considered listening as well as measuring?
--
Fletcher
Mercenary Audio
TEL: 508-543-0069
FAX: 508-543-9670
http://www.mercenary.com
"this is not a problem"