Cecil Moore wrote:
Ian White GM3SEK wrote:
"Lumped inductance is often a good approximation to reality, so [most
models other than Cecil's] very sensibly use that as their
starting-point.

For the umpteenth time, Ian, I don't have a model developed
by me. The model I use is the distributed network model
invented before I was born. Dr. Corum merely expanded upon
that model
and I consider his concepts to be valid.

That last line makes it "your model" by adoption - and certainly "your
model" by advocacy.

Your lumped circuit model seems more like a religion
than a valid tool of science. Zero phase shift through
a real-world loading coil?

That wasn't what I said. What I did say - and you cut - was:

"Lumped inductance is often a good approximation to reality, so [most
models other than Cecil's] very sensibly use that as their
starting-point. Then they can progressively apply corrections for the
distributed properties of a real-life inductors. The smaller those
corrections are, the simpler the model becomes.

In practical terms, a lumped-inductance model will take you straight to
a buildable prototype."




--

73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek