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?