From: pallison49@gmail.com   
      
   LV wrote:   
   >   
   > Phil, your advice rocks !   
   >   
      
     ** Does it?   
      
   > What about the JJs?   
      
      
   ** I service a lot of guitar amps, many of them using EL84 output tubes.   
      
   JJ is a good brand, but so are Sovtek and Electro Harmonix - high failure rate   
   with EL84s is due to BAD amplifier design, not the valves.   
      
   Most recent models from PV, Fender and VOX run their EL84s waaayyyy too hot   
   and burn them out in short order.   
      
   One needs to modify the bias circuitry and the are a couple of ways to do this   
   - depending if the amp uses grid or cathode bias.   
      
   Plate dissipation per valve needs to be brought back to 8 or 9 watts, not 14   
   or 15.   
      
      
   ....  Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)