On 2013-01-24, at 2:33 PM, 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?
>
Hi Pete,
I've used a short length of RG-58 coax for just that purpose in one application
here, to supplement the "C" from my air variable at the base of one of my
extended inverted "L's"...
There's nothing at all wrong with that, I don't think, as long as the coax is
simply "padding" existing C---I don't think you'd want to use the coax for a
LOT of capacitance, though: if I recall correctly, one foot of RG-58 has some
25-pfd. of capacitance---to get, say, 200-pfd., would you really want an 8-foot
coil of coax in your system...?
~73~ de Eddy VE3CUI - VE3XZ
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