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Re: [regsaudioforum] Re: Restoring old electrolytics

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  • Fred
    Applying HT before the tube heaters raise the cathode to a suitable temperature may well reduce the emission of the tube. Cathode Stripping was the term I
    Message 1 of 6 , Apr 2, 2007
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      Applying HT before the tube heaters raise the cathode
      to a suitable temperature may well reduce the emission
      of the tube.
      "Cathode Stripping" was the term I was taught.

      Regards,

      Fred.


      --- Bob Stern <bob_stern@...> wrote:

      > >regtas43 wrote:
      > >
      > >Actually the old tube amps have no controlled
      > turnon for the tubes,
      > >so if you want to max out tube life, you should
      > warm them up every
      > >time with a Variac before beginning to use them.
      >
      > Maybe it's not slow enough to do the trick, but amps
      > that use vacuum
      > tube power supply rectifiers inherently have slow
      > turn-on while the
      > rectifier filament heats up.
      > --
      >
      > Bob Stern
      >




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