XPost: sci.electronics.design   
   From: roger@hayter.org   
      
   boB  wrote:   
      
   > On Thu, 08 Dec 2016 09:19:23 -0600, boomer#6877250@none.com wrote:   
   >   
   > >What is the most powerful audio output tube, as far as RMS wattage   
   > >output?   
   > >   
   > >I have gotten some powerful sound from four 6L6 tubes in push-pull   
   > >parallel. but I want more. I know it's possible to use eight 6L6 tubes,   
   > >which I believe is called " push-pull parallel - parallel", but I'm   
   > >looking into other possible tubes.   
   > >   
   > >At one time, I thought the 807 tube was more powerful than the 6L6, but   
   > >after careful research, it's almost identical, but with a different   
   > >envelope (plate on the top cap).   
   > >   
   > >I'm looking to get a full 500W RMS (or more) output (per channel), from   
   > >all tubes, .... With four 6L6 tubes in PPP, I can only get around 120W   
   > >RMS (per channel).   
   >   
   >   
   > How about a high AVERAGE output wattage ?   
   >   
   > :)   
   >   
   > boB   
      
   I think you are fighting a losing battle here.  About 10 or 20 years ago   
   I wrote to the editors of the RSGB magazine complaining about "RMS   
   power" being used in an article they published and they refused to   
   publish my letter, apparently on the grounds that I was a boring pedant.   
   Admittedly AM does get a bit complicated when the peak RF power of an AM   
   transmitter is a real power (not an instaneous peak of a sinewave)   
   whereas it represents the peak of an audio waveform of which the power   
   is not determined by the level of this peak.   But there is still no   
   such thing as RMS power.   
      
   --   
      
   Roger Hayter   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)