Ross Herbert wrote:
On 15 Jun 2006 23:56:14 -0700, "Ron" wrote:


Hum induction is highly unlikely provided good techniques are used in the
manufacture of the audio equipment and the house wiring is in good
order. Poor electrical wiring can produce loud buzzing and/or
hum/static noise due to large potential variations where poor
connections occur.

Well, that's the thing: the house wiring is not in good shape. We moved
in here about seven or eight years ago, and did *some* re-wiring, but
the bulk of the wiring is old and leads to a lot of 60 Hz noise in
sensitive equipment. I can't do biofeedback in any room of the house
except for my office, where the wiring is new and the 60 Hz noise is
nominal. Like I said in an earlier post, this is a hundred year-old
house: in 1906 people weren't worrying about audio equipment since
there wasn't any. :-)

Ron