Pete Smith N4ZR wrote:
> One of the reasons I have mot gone to high power on 160 is the cost of
> capacitors for my omega match - at least $300. Anyone know of any
> workable alternative? I remember someone writing about using coiled-up
> RG-8, RG-213 or maybe Teflon coax. Where can I find more information?
Making capacitors out of coax seems like an easy solution, however
they end up being fairly lossy due to copper loss. Think about
it: you would not deliberately make a capacitor long and skinny.
The only thing that makes them workable at all is that the heat
generated is spread out over a large area. You would have to
carefully evaluate your proposed design to see if it were feasible.
Rick N6RK
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Topband Reflector
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