[Boatanchors] AM Amplifier

[WA5VGO]

The problem isn't voice peaks. At 100% modulation the amplifier should 
be about 60% efficient. However, as the modulation level drops, so does 
the amplifier efficiency. With no audio, it's down to 25-30%. I suppose 
if someone talks fast and loud, they can push things.

Darrell

On 7/7/2018 9:11 PM, Dennis DuVall wrote:
> Yes, everybody knows that but continuing on:  At 1600 watts peak out (4 X 400 W.carrier) and at a class B efficiency of 50% my 3-1000z is
> dissipating 800 watts on voice peaks with a 100% modulated A M driving signal, well within the tube’s ratings.
>
> That’s all I said.
>
> DD W7QHO