[TowerTalk] SUMMARY OF RESPONSES TO MY 160M INVERTED L /SHUNT FED TOWER QUESTIONS

[Joe L Blackwell]

OK,  RG213 at about 25 puffs per foot makes a good capacitor.  I needed
250 puffs, so
10 ft more or less should do it.  Run 1500w into that and standby for the
smoke.
What is a "voltage rating of 4000 feet"?  New term for me.  Just learning
every day.
de Joe, aa4nn

"Steve Babcock" <kinderh@cadvision.com> writes:> 
> > Don't forget you may replace an ordinary variable cap with a
> > length of coax. RG8 has a voltage rating of 4000 feet, and if I
> > remember correctly, is 29pf per foot. Just seal the stuff and it
> > should last for many years.
> 
> Another affordable way to get the tuning capacitor is to build one out
of
> concentric peices of pipe with nylon spacers.
> See the great article in October, 1999 CQ mag by VE3ERP..... 4 to 5
feet of
> pipe can get you 200 to 300pf depending on diameter ratios. All the
details
> in the article.
> 

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