On Tue, 04 Dec 2007 00:31:02 GMT, Cecil Moore
wrote:

I apologize, Richard, like W8JI, I am unwilling to cut my
75m Texas bugcatcher coil in half. But then, his coil didn't
cost $180 either. :-)

The experiment that you are suggesting is exactly the same
that I suggested to W8JI but he was unwilling to perform
such and I tend to understood why. :-)

As a data point, in the previous argument a couple of years
ago, W8JI tried to use the lumped inductance feature of EZNEC
to "prove" there is never any phase shift through any coil. :-)

So, the short of it (the long of it is above) is that neither of you
have valid data that demonstrates a Corum solution. I'm not
surprised.

Seeing that there is no valid conclusion, it must be by the extended
logic of your understanding of English that both your and Tom's
positions are thus INVALID.

Anything left to introduce, barring actual test results, is not
superposition, but supposition.

Richard Clark wrote:
So, the short of it (the long of it is above) is that neither of you
have valid data that demonstrates a Corum solution. I'm not
surprised.

In addition to my measurements on the 75m Texas
Bugcatcher coil, I also measured ~12-13 ns delay
through 50 turns of the same coil stock that Tom
was using when he measured a 3 ns delay through
a 100 turn coil. That 12-13 ns delay is within
15% of the Corum equation predictions.
--
73, Cecil http://www.w5dxp.com

On Tue, 04 Dec 2007 19:16:01 GMT, Cecil Moore
wrote:

I also measured ~12-13 ns delay
through 50 turns of the same coil stock that Tom
was using when he measured a 3 ns delay through
a 100 turn coil. That 12-13 ns delay is within
15% of the Corum equation predictions.

Using what equipment? And with what load?

Richard Clark wrote:
Cecil Moore wrote:

I also measured ~12-13 ns delay
through 50 turns of the same coil stock that Tom
was using when he measured a 3 ns delay through
a 100 turn coil. That 12-13 ns delay is within
15% of the Corum equation predictions.

Using what equipment? And with what load?

Equipment was a dual-trace 100 MHz O'Scope. If I
remember correctly, the load was four 600 ohm non-
inductive resistors in series. My notes are in a
box somewhere.
--
73, Cecil http://www.w5dxp.com

On Tue, 04 Dec 2007 21:59:04 -0600, Cecil Moore
wrote:

Equipment was a dual-trace 100 MHz O'Scope. If I
What make, model?

Richard Clark wrote:
Cecil Moore wrote:
Equipment was a dual-trace 100 MHz O'Scope.

What make, model?

Leader LBO-518
--
73, Cecil http://www.w5dxp.com

On Wed, 05 Dec 2007 07:44:11 -0600, Cecil Moore
wrote:

Richard Clark wrote:
Cecil Moore wrote:
Equipment was a dual-trace 100 MHz O'Scope.

What make, model?

Leader LBO-518
Using what probes?