dansawyeror wrote:
Thanks - I will try to figure you how to create a non lumped model for
the inductors. Right now that is 'undiscovered country'.

EZNEC v. 4.0 users should use Wires Window/Create/Create Helix. You'll
get many choices, including position, orientation, various ways of
specifying the pitch and number of turns, twist direction, and so forth.
(EZNEC demo users can create any size helix to see how it works, but
won't be able to run a calculation unless the helix is extremely
simple.) In NEC, use a GH 'card'.

There should be at least a wire diameter of air space between turns,
preferably several. (That is, the center-center distance between the
wires in one turn and the wires in adjacent turns should be at least two
wire diameters, preferably more.) If air spacing is less than 2 or 3
wire diameters, the calculated loss will be somewhat lower than reality
because NEC (or EZNEC) doesn't account for proximity effect.

Roy Lewallen, W7EL