12-11-2024, 08:55 PM
I was formerly an audio-video system engineer. The “s” sound is a great test to the frequency reproduction of a system. I think I understand exactly what you’re hearing now. Probably sounds like a radio that’s not quite tuned to a particular station, doesn’t it?
Sounds like a change in capacitance if you ask me. But given that you say it was a sudden onset, I’m almost inclined to say it’s a tube issue. Certain failures within tubes can cause changes in capacitance from pin to pin.
Just as a sanity check, have you tried playing different records? Does the radio mode sound normal?
Sounds like a change in capacitance if you ask me. But given that you say it was a sudden onset, I’m almost inclined to say it’s a tube issue. Certain failures within tubes can cause changes in capacitance from pin to pin.
Just as a sanity check, have you tried playing different records? Does the radio mode sound normal?
Joseph
Philco 46-480
Philco 49-906
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