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   rec.audio.tubes      Tube-based amplifiers... that go to 11      52,877 messages   

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   Message 50,951 of 52,877   
   Phil Allison to All   
   Re: Restoration Story and a Caution   
   09 Jun 10 15:00:57   
   
   XPost: rec.antiques.radio+phono   
   From: phil_a@tpg.com.au   
      
   "Paul P"   
   >   
   > Mark,  This is an important story.   
   >   
   > The purpose is to shunt RF noise to ground.   
      
      
   ** Not really.   
      
   Without the so called "death cap", the chassis of the unit will float with a   
   high 60Hz AC voltage and this will cause audible hum in the phono and maybe   
   tuner signals too.   
      
   With the cap  AND  the AC plug inserted the correct way around, such hum was   
   very much reduced.   
      
   The only SANE  procedure these days is to fit a 3 core lead and plug to such   
   units.   
      
      
      
   ....   Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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