Tubes Asylum

• RE: That's called 'microphonics' and you simply have to replace the tube. - pictureguy 21:16:29 11/12/21 (1)
  In Reply to: RE: That's called 'microphonics' and you simply have to replace the tube. posted by Ralph on October 06, 2021 at 11:20:43

  So than WHY tube damping rings? Makes me curious.....?
  Too much is never enough
  
  

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  • All tubes, even good ones, are microphonic - Ralph 10:23:49 11/15/21 (0)
    In Reply to: RE: That's called 'microphonics' and you simply have to replace the tube. posted by pictureguy on November 12, 2021 at 21:16:29

    So you can hear differences using the damping rings. You just have to be careful to not overdo it, because the damping rings reduce the tube's ability to get rid of heat. Heat will shorten its life. That is why dusty tubes don't last as long.
    
    IME on a small signal tube I've never heard one degrade the sound. They can be helpful if the preamp is in the same room as the speakers, since the more still the tube is the less microphonic it will be as well.
    

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