[Amps] Class A for AM

[Tom W8JI]

> Except in class A the input power never changes. If it is 
> set up for 6000
> watts input in order to provide 1500 watts output @25% 
> efficiency then the
> input power will always be a constant 6000 watts with or 
> without modulation
> or carrier.
>
> When it is putting out 375 watts carrier the input power 
> will still be 6000
> watts.
>
> So the dissipation would be 6000 watts minus power out for 
> any given output
> power.


That's the way I see it also.

Since it should make around 50% on peaks it should make 
around 25% on carrier, and 3000 watts plus headroom of 
standing power should do it.
It will just be useful output power minus standing zero 
signal dissipation.

73 Tom