William Mutch wrote:
I was listening to my most modest boatanchor, an S-38E, at the
ktichen table when it suddenly, in mid broadcast, came on with a massive
raw AC hum on the output.

Does the hum persist when you turn the audio gain all the way down?
Or does it go away?
---scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."