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Old June 24th 05, 03:07 PM
Wes Stewart
 
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On 24 Jun 2005 06:00:55 -0700, "Brian Kelly" wrote in
reply to my comments:

[snip]

(1) Physics must have changed, I guess I missed the revisions.


I don't recall any changes. The pi (and tee and other) network(s),
having three reactances, allow(s) the operating Q to be set by the
choice of component values. Efficiency is a function of the ratio of
operating (loaded) Q and the unload Q of the components.

For a single reactor it is: eff = Qu / (Qu + Ql)

Clearly, for highest efficiency (lowest loss) you want high unloaded
Q(s) and a minimum loaded Q. By reducing the inductance below an
optimum value, the unloaded network Q was increased, resulting in
lower efficiency.


(2) Doesn't matter because old wives tales trump physics every time.


Not sure what this means.

(3) The bloomin' file won't run in my version of Excel. I missed those
revisions too.


I thought my software was behind the times.