>At 09:36 AM 12/13/97 EST, you wrote:
>>I've heard that applying regulated 3-400 volts to the screen of a cathode
>>driven 4-1000 in grounded grid will lower the drive requirements. Any
>>comments?
>>
>>Thanks.
>>
>>Bob
>
>There was a construction article for an amp of this in the January 1974
>issue of Ham Radio by W4OQ. I built the amp and used it for a while years
>ago.
>If you will pass along details, such a what the situation is now, how
>much plate voltage you are running, drive power available, and power
>out, I will try to look up in my notes what you can expect with the mod.
>
>I currently have a standard configuration G.G. 4-1000A amp. My max. drive
>available is 100 watts. It has a very good tuned input circuit, and the
>output is 1550 watts with 6000 volts on the plate @ 740 ma IP, which is
>the design limit for the tube.
>
1550w-out/4440w-in is 35% efficiency.
Rich...
R. L. Measures, 805-386-3734, AG6K
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