Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
Hi Bart,
After looking at the Fraga equation again, it does look and L and C 
directly. It uses the product of L and C by virtue of the frequency 
needed for skin depth.  Your Les and Ces are the frequency 
determining equivalents that are suppose to be accurate to like 
1%.  How accurate are Medhurst C and Wheeler L in predicting the 
correct frequency.  I doubt there will be any significant difference 
especially since f gets sqrt'd which will cut the error in half.
Gerry R.
Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>
Also, with Fraga, Gary used Medhurst C and L. I wonder how it plays 
out with Ces and Les in place of Medhurst? As a matter of fact, I 
wonder how well a lumped effective L and C would work with all the 
equations? They probably won't change a great deal (but, I haven't 
looked at that).
Take care,
Bart