1704a06a   
   From: serpentine@netcologne.de   
      
   Hi Patrick   
      
   > Most ppl think the UL connection for EL34 always means 43% screen taps.   
   > This % was always regarded as optimal because triode like THD is   
   > achieved and Rout reduced to give Rout = RL. But this was mainly for   
   > class AB PP amps.   
      
   Yeah, and most winders wholeheartily will agree that 43% percent is ideal   
   because it is just the end of the 4th winding block of a 7-way   
   interleaved design (means 14-way interleave for PP), hence easily to   
   manufacture. Same with 50%, 40%, 33% and 25% (depending on number of   
   interleaves).   
      
   So much on "magic UL% numbers", honi soit qui mal y pense (I don't mean   
   you personally).   
      
   Regards,   
      
   Tom Schlangen   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)