[AMRadio] AM Amps


Geoff w5omr at w5omr.shacknet.nu
Tue Jan 11 00:26:37 EST 2005


Gary Blau wrote:

> Although both of these will serve to reduce the drive power and get you
> on the air, they are less than optimal.
> 
> The problem with reducing the B+ is the max PEP goes with it.  You'll
> want to preserve that for positive modulation peaks.  As Gary Schafer
> sez you want to keep the driver PEP up to where the amp needs it for
> full output, as long as the plate dissipation is not exceeded during
> dead carrier.  Better to keep the plate hi and pull back the screen V.  

I don't think that's what happens.

http://w5omr.shacknet.nu/~wa5bxo/asyam/Amplitude%20Modulation.htm

That's a great read.  Everyone -should- read that.

73 = Best Regards,
-Geoff/W5OMR





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