[TowerTalk] 43' vertical mod for true resonance on 80M

[Rick Karlquist]

Mark Robinson wrote:
> So maybe a polyester film capacitor? I imagine that the current is major
> issue in the selection of the capacitor here
>
> Mark N1UK

The only low loss RF plastic dielectrics are teflon, polyethylene,
and polystrene.  Capacitors made from polyester/mylar, polypropylene,
or polycarbonate with have something like 2% dissipation factor.  IOW,
the Q will be only about 50.  Also, they may have substantial inductance,
being rolled up.  Not recommended.

Rick N6RK