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In Reply to: RE: Whistling Tube Question posted by erik on June 27, 2020 at 17:10:00
So, folks, the preamp is fairly new, just a few months old, the sockets are clean as a whistle. Just in case cleaned them a bit. The pins on the tube are also cleaned (always do that), but this particular Soviet-made ones have thin pins, and they were very wobbly in the sockets. I bend the pins slightly outward, the noise is 99% gone, lasts just for a few seconds.
Still, I think there is some problem with that particular tube, since nothing in its place before made that noise.
Thanks everybody for the feedback.
Thanks Ralph. Can it potentially damage the unit?
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