Gudguyham@aol.com wrote:
> I was reading the Bill Orr handbook and on his section about amplifiers he
> says.....A properly designed grounded grid amplifier should produce 2 to 2.5
> times the plate dissapation of the tube in output. He did not put any
> limitations on the statement as to IMD or anything like that. He did not
> say if
> the tubes ratings would be surpassed (I am sure they would), but I think
> what
> he was saying is that the tube should continue to make power to 2 to 2.5
> times
> it's dissapation before it would not make any more power and flatten out.
>
I see more than a little ambiguity in that statement. Did he mean under
normal operating conditions the output power will be 2 to 2.5 times the
power "being dissipated" by the tube or that a tube of a given plate
dissipation (say a 1000 watts) could put out 2 to 2.5 times that rating
(2 to 2.5 KW in this instance) Was it a poor choice of words and which
did he mean? My first thoughts were he meant the first, but then the
first answer I saw referred to the second. The second would depend on
the emission characteristics of the cathode and the class of operation.
73
Roger (K8RI)
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