"Owen Duffy" wrote various ways and means of automatically
controlling the power output of transmitters. Thanks very much.

Presumably control is needed to limit the power dissipated in the
output transistors which involves a time delay. And, which is a
different thing, to place limits on the instantaneous
collector/emitter voltage.

In my Icom 735 transceiver the first control requirement appears to be
met by by placing a limit on the DC collector current or power input.
The second requirement appears to be met by feeding back a
gain-control voltage proportional to the magnitude of the reflection
coefficient of the load impedance. I may not be entirely correct.
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Reg.