On Fri, 3 Sep 2004, Will Matney wrote:
> After answering an earlier question to Rob about cores in low frequency
> tank coils, something hit me. What if the core had a series of holes
> close together about 1/2" in diameter all around its circumference. This
> would look something like taking a piece of perforated steel or aluminum
> having 1/2" holes and wrapping it up into a tube. The spacing would need
> to be a little farther apart, and have a staggered pattern, in order to
> turn groves for the conductors.
Akin to plumber's tape but made out of copper?
> Another route would be to burn or machine longitudinal grooves about
> 1/4" wide, spaced about every 1/2" apart around the circumference.
> Actually the wire groves could be made first before the air holes.
1/4" copper tubing with slices cut out of the sides of the tubing for the
entire length of the coil? That's an interesting idea. But wouldn't that
make the coil set up impeadance problems as would copper strap braid?
73 Jason N1SU
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