[Amps] Time to back up- SS and autotune

[Bill Turner]

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On Sat, 17 Dec 2016 05:37:07 -0500, K8RI wrote:

>it's "relatively easy" to parallel properly designed circuits through 
>properly designed combiners for the power to be run that give excellent 
>linearity, rugged with minimal protective circuitry, and good efficiency 
>at a reasonable heat load that is easy to get rid of.   (QUIET!)

REPLY:

A little OT but not much:  Several years ago I was fortunate enough to
get a tour of KFI, the AM broadcast station in Southern California.
They were running a Harris DX50 transmitter which was all solid state
and produced 50 kW output. It uses a bunch of 250 watt modules which
were combined and switched in and out at an audio rate to produce the
modulation. No separate modulator. 

Just shows what low power amps with combiners can do. 

73, Bill W6WRT