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Old March 9th 06, 09:01 PM posted to rec.radio.amateur.antenna
Cecil Moore
 
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Default Current through coils

"Roy Lewallen" wrote:
I've avoided this discussion for two primary reasons. One is that it

saddens me to see this "controversial" topic being brought up yet again
after having been discussed at great length a number of times before.
There's no reason I can see for it other than Cecil's religious zeal and
dogged determination.


The reason is that you are wrong and I have provided expert testimony
that you are wrong. I'm trying to stop you from speading false information
so don't fault me for that. The fact that you refuse to have a technical
discussion with me in spite of the numerous expert postings that
prove you are using an invalid model, speaks volumes. The results
of the spreading of lumped-circuit analysis myths is that you are
hoodwinking the uninitiated.

Fortunately, some very good, honest, and knowledgeable people have been
doing a very good job of presenting the facts. These include Tom, W8JI;
Ian, G3SEK; Wes Stewart, N7WS; and Gene Fuller, W4SZ.


This is an argumentum ad verecundiam, a well known logical
diversion and not a technical argument. I have quoted just as many
experts and you have ignored them. In particular, R.W.P. King is
quoted from "Electromagnetic Engineering": ... for coils whose
*wire length* exceeds 1/6 wavelength, an adequate representation
of the reactance of a coil is *NOT POSSIBLE* in terms of a coil
with a uniform current [a lumped-element inductance]..."

Roy, my 75m bugcatcher coil, made from 44 feet of wire, is more
than 1/6 wavelength of wire. R.W.P. King says your lumped-circuit
analysis is *NOT POSSIBLE*. He used bold print and underlined the
words, *NOT POSSIBLE*. Ignoring the quotations from the true
experts is just going to leave you ignorantly spreading old wives'
tales. Is that really how you want to be remembered here?

Why are all of you alleged "experts" unwilling to discuss technical quotes
like R.W.P. King's above? Are you afraid that readers will discover
your common mistake which Dr. Corum calls "sophomoric"?

As Dr. Corum says: "There are no standing waves on a lumped
element circuit component. (In fact, lumped-element circuit theory
inherently employs the cosmological presupposition that the speed
of light is infinite, as every EE sophomore should know."

Why do you choose to absolutely ignore that technical knowledge?
--
73, Cecil, W5DXP