Mark,
I think you did not understand how does it work.
As the word says, the plate dissipation is the energy dissipated, not
the total power involved.
If a tube FM amplifier (typically a class b) has roughly 70% plate
efficiency, @ 2600W out the plate dissipation is 1114W.
73,
Mauri I4JMY
---------- Initial Header -----------
>From : amps-admin@contesting.com
To : <amps@contesting.com>
Cc :
Date : Tue, 12 Nov 2002 22:18:48 -0500
Subject : [Amps] EIMAC Confusion
> In the EIMAC Technical Data for the 8877/3cx1500A7
> is is stated in the ABSOLUTE Ratings the Plate Dissipation
> is 1500W. I take this as an ABSOLUTE MAX.
>
> However in the TYPICAL Operation at 88-108MHz USEFUL POWER OUTPUT
> is rated at 2600W.
>
> Is this meaning that the tube is providing 2600W to the load while pla
te
> dissipation
> is only 1500W? Is this possible ? If so What is then the TOTAL TUBE
> DISSIPATION
> and how is the filament power related to it ?
>
> Mark
>
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