Jim Wiley wrote:
Well, according to the wire tables, the 26 gauge center conductor can
Where do you find wire tables for 50MHz? The ones I've seen are for 50
or 60Hz.
safely handle about 350 to 400 milliamperes, depending on how you
If you are using 60Hz wire tables, you will need to derate the current
handling by maybe a couple of orders of magnitude! I'd suggest finding
out the mains frequency resistance, then calculating the power
dissipation per unit length. Next take the 50MHz attenuation and
convert that to a power dissipation, and match the two. This is not
perfect, because the attenuation will include dissipation in the
dielectric and the shield, which might be closer to the surface and
therefore dissipate more easily.
--
David Woolley
"The Elecraft list is a forum for the discussion of topics related to
Elecraft products and more general topics related ham radio"
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