[Elecraft] OT: Astron RS-35M Transformer Hum

Nate Bargmann n0nb at n0nb.us
Fri Apr 24 16:07:57 EDT 2020


* On 2020 24 Apr 11:50 -0500, inventor61 . wrote:
> If someone has a better idea than mine for making these, I am all ears.

No better idea.  I've read in times past of someone sandwiching some
compressible material between the transformer and the supply top cover
to quell or reduce the hum.  I have an RM-50M that hums in this manner
and fortunately it is not loud enough to keep me from listening to the
K3 at about 8 o'clock with external speakers.

73, Nate, N0NB

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