On Sat, 15 Jan 2011 21:29:00 -0600, joe wrote:

If you look only at a resistive source impedance, the most power we can
get is

Hi Joe,

It is a given that from the power available in the field, only half of
it at most will be captured - ever.

So, doing something to match the tank to the load could be much more
effective. A tapped coil or additional winding has been suggested.

Well, the discussion took a branch into resistive networks for the
simplicity of discussion, not as an example of a solution to the
practical problem.

A tapped coil is an excellant choice, of course, I offered that option
myself. A secondary coil, also suggested, is just as useful.

73's
Richard Clark, KB7QHC