Cecil,
10W out of the antenna or 10W out of the transmitter? With a
T2FD, there is a very large difference on certain frequencies.
Out of the TX. I know that the lower you go, the warmer the pigeon
sitting on the resistor will get.
I tested the small neons I have. I basically found two types, one that
clips at 60V, the other at 110V. I made a classic 4:1 balun and
soldered one 60V between each balanced arm and common. I know it's
like wearing suspenders and belt, but I don't think they will hurt at
under 10W.
Also, in view of what I read, I understand Richard's claim that a T2FD
will snuff out much of the energy anyway:
- if the spectrum of the AC induced by a near hit is mostly in the LF
to MF range, the resistor will indeed take most of the heat, just as
if the power were coming from the coax
- moreover, as I sized the windings for 4MHz and up, the balun itself
will short to ground much of the leftover energy it does receive from
a near hit.
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