On Sat, 18 Nov 2006 03:58:04 GMT, Owen Duffy wrote:

It seems to me that an explanation that considers that I1=I2, or that
propagation time on the coax is zero, or that the inner conductor
forms a inductance with mutual coupling to the outside of the outer
conductor is flawed.

Here's a discussion of the coax trap from an old QEX:
http://www.arrl.org/qex/Mueller.pdf

S.T.W.