I used to have the problem of "evaporating" matching transformers and
resistors. About 5 years ago, I addopted a very simple cure for this, and
so far, no more "evaporating" parts due to lightning surges. My matching
and termination components are contained in small plastic weather proof
boxes, and I simply bypass the antenna side of the transformer or resistor
to the ground side through a spark gap. The spark gap consists of heavy
solid wires - about 10 AWG, soldered to teardrop terminals that are placed
under the screws going to the antenna and ground. The ends of the wires are
cut with "side cutters" leaving a nice "knife edge", and I position the two
edges very close to each other. A piece of paper makes a nice "feeler gage"
for this purpose. It is very effective, most simple, and negligible cost.
It can usually be added on to existing installations with no special bother.
Try it - you'll like it.
73,
Riki, 4X4NJ
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