Topband: Covered /bare antennn wire

[Bruce]

Looks like  "Inside the house antennas" have enough "air space insulation" 
to prevent corona and voltage arcs.
We probably could not insulate an outside antenna that well.

73
Bruce-K1FZ


The antenna trickle charges the output capacitor (with microamperes of
> current) until the cap flashes over. This sudden rings the tank with high 
> voltage, and that blows the diodes in the directional coupler detector.