Tom Donaly wrote:
Anyone can take a small inductor, such as Roy described, and try to
analyze all the currents and such in it using a distributed model at low
or moderate frequencies. If they do, though, they'll just come up with
what they'd have come up with treating their small inductor as a
lumped element.

One wonders why some people insist on a "small
toroidal inductor" which obviously agrees with
the lumped-circuit model instead of analyzing
a 75m Texas Bugcatcher loading coil which just
as obviously violates the presuppositions of
the lumped-circuit model.

Instead of the "small toroidal inductor", let's
discuss w8ji's 100 turn, 2" diameter, 10 inch
long air-core coil through which he measured that
ridiculous 3 nS delay after which w7el posted some
"agreeing measurements" while asserting that the
electrical length of the coil was 33 degrees.

Does anyone else realize that 33 degrees in 3 nS
at 4 MHz is faster than light speed?

Are you guys so afraid of losing face that you
are willing to post technical falsehoods?
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com