[TenTec] Power Amps, Conuugate, Bruene and Maxwell

[Jim FitzSimons]

Jim, when the amplifier moves from A, to AB, to B,
to C, to D, to E all the rules change.
With high powered FETs much different things are
possible. AM MW transmitters are now digital.
Their design is more like a switching power supply 
than a RF amplifier. I use a RF power supply running
at 13.560 MHz. It has four MRF150 FETs and a narrow band
pass filter on the output to filter out the switching
noise. The filter has three stages. It is not a simple 
matching network.
Regards, Jim FitzSimons W7ANF

Jim Reid wrote:
> 
> This is long,  wordy!  Delete NOW if of no interest.
> 
> Note:  apologies for my errant post of an incomplete
> draft of the following note,  here is what I had intended
> to post when complete.  The miss-post also retained the
> subject about low vswr which I also intended to change
> before posting,  Jim Reid,  KH7M

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