Topband: T - vertical improvement

[Dan Zimmerman N3OX]

>  At 1.5 kW the 370 pF cap will see 10 kV
> RMS. You are looking at a vacuum variable capacitor.


Wait a second.

1500W into 35 or so ohms is like 6.6A... running through -j235 ohm capacitor
is more like 1500Vrms/2100V peak.

10kVrms across a 370pF cap at  1.8MHz is 42A flowing through.  That's nearly
62kW into 35 ohms... or like 1500W into less than a couple ohms.

I was going to respond "Max Gain Systems" for vacuum variables to the
subsequent post asking that but it's not necessary here.  Plenty of air
variables that can take it.

73
Dan