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Iron Powder Toroid - weatherproof?

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August 8th 07, 06:03 AM posted to rec.radio.amateur.antenna

John Smith I John Smith I is offline

John Smith I is offline

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Iron Powder Toroid - weatherproof?

wrote:
Ok, dumb question. Can a Iron Powder Toroid be used outside without
being weatherproofed? Can it be painted with enamel and the used that
way? -Scott, WU2X

If that is a dumb question, that makes two dumb people we have found,
you and I.

I finally settled on a vinyl spray paint, the type found in auto stores
to "restore" vinyl dash boards from the effect of solar rays. I could
find no metal compounds on the list of ingredients and took a chance.
Seems to work just fine. Balun is in an enclosure which keeps most
moisture out, condensation is my major worry.

If I ran high power into the balun--running a high swr, I would begin to
worry about the heat tolerance of the vinyl spray (wire insulation is
high temp enamel.)

I am glad you posed this question, others might have better methods, I
have never thought to ask.

Regards,
JS

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