From: phil_a@tpg.com.au   
      
   "GRe"   
   >   
   > BTW, maybe the only intended function of the circuit was to create a warm   
   > up delay but in that case a waste product of the circuit is that it adds   
   > tube rectifier impedance.   
      
   ** The paralleled 6X4 plates act like a 150 ohm resistor - along with the 56   
   ohm 5W plus the resistance in the transformer secondary of about 180 ohms.   
   All helps to reduce the ripple voltage on the HT.   
      
   But there is no sag under load as the current draw is constant.   
      
      
      
   ...  Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)