[Lowfer] More about Litz vs solid wire

[Lyle Koehler]

I suspect that the example given on the New England Electric Wire site has a
slight calculation error. Using the formulas in "Reference Data for Radio
Engineers", I calculate the resistance of 1000 feet of 0.0658 inch diameter
(approximately #14) solid copper wire at 100 kHz to be 4.79 ohms; not the
51.3 ohms that NEEW shows in their example. HamCalc comes up with the same
result (probably using the same formula) for solid wire. At 185 kHz, the
resistance of the solid wire would increase to 6.5 ohms per 1000 feet, while
the Litz wire resistance should increase only slightly. But the Litz
advantage is only a little over two to one for this particular wire size.

Lyle, K0LR