> The tuner for the British Army D11/D13 tx's could certainly do it.
>
> I've seen it in a Z match, too. Not often - depends on the load. I
> don't like the Z match anyway.
With a reasonable load connected? No way!
Perhaps you are confusing an unwanted self-resonance in a roller
with the tuner "loading into itself".
> >What does happen is there is a smooth and gradual reduction in
> >efficiency as the Q is made higher,
>
> Especially in a Z match - which is why I don't like it.
The reduction in efficiency is so gradual and slight no one would
ever notice. Long before the power drops substantially, a
component will fail. Unless you are running less than a few hundred
watts into a tuner capable of a few kilowatts when properly tuned.
People just need to learn to use the maximum possible
capacitance that allows a match in a T network. That really is
pretty simple.
73, Tom W8JI
W8JI@contesting.com
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