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Old May 25th 04, 05:12 PM
Henry Kolesnik
 
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Before it came down my 20 meter antenna had a SWR approaching 20:1 and I was
running a Collins 30S-1 and no tuner!. I did that for several years and
would be still doing if the roofers hadn't destroyed ~130 ft. dipole. One
of these days after my back improves I'll put another one up.

--
73
Hank WD5JFR
"Richard Clark" wrote in message
...
On Tue, 25 May 2004 13:50:09 GMT, "Henry Kolesnik"
wrote:

Richard
This is in response to your answer of last night. Before going to bed I

got
out the book REFLECTIONS II by Walt Maxwell W2DU. I'm typing verbatim

from

Very familiar stuff which I have held Walt accountable for. We have
had considerable correspondence to this point and he is holding my
argument in suspension, pending his bench work confirmation of my
simple experiments that I have posted here to this effect.

I'm guessing it's a virtual short because the pi-network is resonant but
what happens if it is a bit off. Also what happens in a transistor final
with no pi?


What you describe is consistent with Walt's language, you deserve
points for following his logic. As for your question about the
transistor final with no pi network. That was handled quite
explicitly by me for the thread "Loop Antenna for Class-E amplifier"
in correspondence with Toni, ea3fya and Marc Battyani. If you will
note, this thread was entirely devoid of ego so puffed up in these
issues, and we had the rare opportunity of a third, independent
observer who also sat at the bench and followed the instructions and
comments I offered with actual construction and testing to POSITIVE
results. You may also note the absolute vacuum of other's comments
imploring that his data was chimerical, illusions of a meter. In fact
it was one of those rare threads with a question much like yours, with
the same simple observations offered by me, confirmed and ending in
very much less than 600 postings of supposition and superstition.

However, back to Walt's treatise and your reading of it. I again
simply ask: "Do you have a tuner in line each day you fire up your
rig? Why, if you have faith in your logic, do you need it?"

As I've pointed out, there's the recent thread, and any number of
simple tests and experiments that I have offered here. These etudés
are typically ignored in favor of vacuous theory-spinning - NONE of
which answer the simple question: "What is the Source Z if it is not
50 Ohms?"

73's
Richard Clark, KB7QHC



 
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