Gene Fuller wrote:
I am familiar with all sorts of weird and wonderful things that happen
on surfaces and really close to interfaces and discontinuities.

Here's a little brain teaser for you, Gene.

Given the following experiment with two signal generators
equipped with circulators and load resistors - the generators
are phased-locked to ensure coherency. The two feedlines
are of equal electrical lengths.

100W | 25W
50 ohm---50 ohm line---+---291.4 ohm line---291.4 ohm
SGCL1 Pfor1=100W-- | --Prev2=25W SGCL2
--Prev1 | Pfor2--

What is the magnitude of Prev1? Pfor2?
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73, Cecil http://www.w5dxp.com