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Old June 19th 08, 04:15 PM posted to rec.radio.amateur.antenna
Richard Clark Richard Clark is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 2,951
Default Efficiency and maximum power transfer

On Wed, 18 Jun 2008 20:39:12 -0400, "Walter Maxwell"
wrote:

Richard, am I now to understand that you haven't reviewed my Chapter 19A, which
details the entire procedure I used for the measurements that include the
resistance RL = 1400 ohms at the input of the pi-network? If you haven't I can


Hi Walt,

As I expected, you can provide quantitative data. This is a
refreshing change from the, what?, 100+ postings of "thoughts" on the
matter? It would suggest a poor rate of exchange for thinking these
days to come to so little conclusion.

You can find 19A by using this url from Cecil,
http://www.w5dxp.com/Chapt19a.doc.


Well, if you posted it through Cecil here, yes I didn't see it as I
don't read him.

Now, however, having a copy of that work from your own web site (why
didn't you reference that?) that I got after my last post, I will go
through it by the steps you lay out so carefully.

http://www.w2du.com/r3ch19a.pdf

Before doing so, and confining that to a separate posting, I would say
that I can acknowledge your fine work and care at creating a protocol
that does seem to reduce the variables, and test your hypothesis
without editorial bias. It seems like a great improvement from
earlier attempts to tackle the same issue.

A preliminary thought, however: What would you say is the Q of the
plate tank, Plate to Load, during operation under each load?

73's
Richard Clark, KB7QHC