[Milsurplus] FET regulator

[Hubert Miller]

Could such HV FETs be used in a simple transmitter, similar to the one-tube transmitters of the past?
I mean, allowing for a good safety ratio to B+ and allowing for high SWR.

I recall an 'Electronics Illustrated' article from 1960 something that showed a transistor transmitter
which was an analog of the single tube novice transmitters such as the Ameco AC-1 and such. It 
used two HV transistors in parallel at 175 volts for an input of 17 watts. It occurred to me that maybe
these HV FETs have input capacitance that makes them impractical for this use.
-H