[Milsurplus] FET regulator

Fri Apr 7 17:03:10 EDT 2017

They have been using inexpensive FETSs for HF amplifiers for years. There are lots of 24-28 volt designs based on the IRF-510 that output 40 watt puch-pull.

Mike N2MS

> On April 7, 2017 at 4:43 PM Hubert Miller <Kargo_cult at msn.com> wrote:
> 
> 
> 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
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