[TowerTalk] wet coax, teflon tubing and feedthroughs

[Pete Soper]

If I use a pair of coax runs to create a balanced line of 2X impedance, should I
care if moisture gets into the jacket? Would it create extra loss as it does 
with coax used in the usual fashion? 

Could somebody point out a source for the teflon tubing and small diameter
(look like 1/4-5/8") ceramic feedthroughs like those in the Sevick balun book?

Regards,
Pete
KS4XG

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