[AMRadio] AM linear operation

[Jim Tonne]

Don:

Your writeup was an absolutely wonderful discussion of
the use of linear amplifiers in AM.   And you covered a 
lot of bases.   Right on   :-)

I want to add just two little tidbits.

One is that I have referred to screen-modulated amplifiers
as using the "efficiency modulation" system.   This is right
in line with what you just wrote.

Secondly, I worked for a bunch of years at Continental
Electronics in Dallas, Texas.   In their earlier years they
made rather high quality screen-modulated AM broadcast
transmitters.   (Let's not at this point talk about their awful
efficiency!)   I remember one of their salesmen talking
to me about them.   He said that "The way to keep those
rigs cools was to either modulate heck out of them or else
to turn them off!"

- Jim W4ENE