On Tue, 01 Jan 2008 15:00:54 -0800, Roger wrote:

There seems to be some confusion as to the terms
....
Two things to notice about the Thévenin equivalent circuit:
1. It contains an ideal voltage source "IN SERIES" with a resistor.

Hi Roger,

One confusion would seem to originate in your reliance in resistors.

A resistor (R) is NOT the series (or for Norton the parallel) passive
device - it is an Impedance (Z).

This misapplication (R) was perpetuated by Edison when he battled
Westinghouse for funding of power generation projects. He would
invariably craft the resistor (R) into the equation for the bankers to
prove DC was more efficient that AC systems, when in fact the
engineering (Z) proves quite the contrary.

I suppose the bankers bought it (R) at the outset, but market
economics (Z) hammered Edison into the ground when the bookkeeping of
AC made their investors rich at the expense of DC.

This also raises issues of the confusion over conjugate matching and
Z0 matching where many correspondents here freely intermix the two's
characteristics as though they belong to one or the other (or both, or
neither).

73's
Richard Clark, KB7QHC