On Sun, 15 Apr 2007 18:30:59 -0500, "J. Mc Laughlin"
wrote:

One characteristic of a "virtual short" is that its presence or location is
dependent on frequency. Another characteristic is that signals are expected
to exist on both sides of a "virtual short." One characteristic of a
"physical short" is that it does not depend on frequency. Another
characteristic of a "physical short" is that signals exist on only one side
of the "physical short's" location.

Hi Mac,

It's a shame no one has offered you kudos for such a telling and
succinct observation. It stands there balanced with another book-end:

A certain English SK would observe that an English
writer of mathematics and children's books had these ideas down a long time
ago.

No doubt this is a delicious reference to how these threads approach
an agony in 8 fits: "What I tell you three times is true."

73's
Richard Clark, KB7QHC