Jim.
I don't see this as resurrecting an old thread. You've asked for help in
your particular circumstance, not to discuss the merits of a generic
transformer.
As you seem to have done almost everything sensible, if the correct
torque doesn't correct it, I think your only recourse is to get back on
to Elecraft and tell them you think the transformer's faulty.
In the meantime, I guess the only thing you can do is either not use it,
or wear headphones and try to ignore it.
73,
Alan. G4GNX
On 2020-10-20 8:11, jimn4kh wrote:
I wasn't my intention to resurrect an old thread. I checked the archives before
posting my message yesterday. I found a little info but not much. Perhaps I
missed it. I delayed going to the list but Elecraft tech support is apparently
really backed up because I've gotten zero response to my emails and voicemails
beyond one email with the hum mitigation tech note I mentioned before. I
thought perhaps the larger community had a specific solution. Judging from the
widely varied responses I've gotten obviously not. I've tightened, loosened,
and moved the transformer around multiple times with no change. I'll go get a
torque wrench and try that but I cant imagine it resolving the problem given
how loud it is. Ill take it all apart first and try the procedure once and see
if it helps. I just don't like having to solve problems through experimentation
on a $2k+ amplifier.
Jim N4KH
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