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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.
Follow Ups:
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Thanks Ralph. Can it potentially damage the unit?
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...it was great to know, I really like them, and it was quite difficult to obtain the version I have.
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