[Amps] 4-400A low output, VU3RAZ problem

[Ron Youvan]

Mark K5AM wrote:

>> VU3RAZ wrote:
>> 4-400 (4-400A?) . . . 450 V DC Screen  . . . 130 W output.

> Your screen voltage is insufficient. Do you have the
> data sheet, with specifications for class AB1?

> I use 810 volts on the screens and get 1200 W
> from two tubes in push-pull.

   My Eimac data sheet (4-400A) says 600 Volts is the absolute
maximum screen Voltage and typical operation is 500 Volts so 450 Volts 
should work.
-- 
    Ron  KA4INM - Endless Loop: n.        see Loop, Endless.
                  Loop, Endless: n.       see Endless Loop.
                  -- Random Shack Data Processing Dictionary