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Old April 1st 06, 02:34 AM posted to rec.radio.amateur.antenna
 
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Default Current through coils


Reg Edwards wrote:
To nobody in particular.

If the propagation time along a coil is equal to the time taken for
the current to travel along the length of wire in the coil at the
velocity of light, then, at a given frequency, if a half-wavelength of
wire is wound into a coil it should become self-resonant at that
frequency.

But it isn't. The coil resonates at a different frequency which
depends on the length and diameter of the coil as well as on the
length of wire.

Just make a coil, measure its resonant frequency, then measure the
length of wire it contains. There will be no direct relationship
between resonant frequency and length of wire.



Thanks Reg, but I'm sure most people already understand that. I think
those who have been following this thread and who don't understand that
are beyond help.

As a matter of fact if we all just go back to the very first post you
made, we'll see nothing has changed from what you initially said.

I'm sure the 800-post thread will continue another 800 posts. People
must be bored.

73 Tom