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Old November 16th 08, 09:57 PM posted to rec.radio.amateur.antenna
Richard Harrison Richard Harrison is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 588
Default "Unwashed" hams and "washed" hams

Art wrote:
"The fact that this old book is being republished by the publisher is to
obtain money and should not be seen of (as) verification of its
contents."

I`ve had both editions. They are identical in content (no corrections).
Terman says essentially the same things about "skin effect". Griffith`s
examples and drawings are more extensive.

Charges are moved to the surface by reduced inductive opposition there.

Imagine a wire made of many concentric layers. Each layer`s current
produces inductive opposition. This is generated by the current that
layer carries. The inner layer is encircled by all the lines of all the
layers while the exterior layer is encircled by only the lines generated
by its current and none from the lines generated by the current in the
layers under it. Thus, there is little inductive opposition to current
on the surface of the wires.

Best regards, Richard Harrison, KB5WZI