On Thu, 14 Jun 2007 10:56:40 -0700, David Gilbert wrote:
>Per your comment below, I'm curious why I don't hear people using small
>diameter high-flexibility heliax for ferrite core baluns. FSJ1-50 (1/4
>inch diameter) and FSJ2-50 (3/8 inch diameter) are both rated for a
>one-time bend radius of 1 inch, and either should handle a lot of
>power. Short lengths (5 to 50 feet) of both types regularly show up on
>eBay at well under a buck a foot.
Probably for the same reason that it isn't in genreal use in ham radio --
few hams (including me) know about it or know that it is available at low
cost. I see no reason why it wouldn't be a good choke material. On the
other hand, ordinary coax works fine too.
Jim Brown K9YC
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