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Potting a balun: wax vs. epoxy vs. urethane foam?
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August 17th 04, 04:54 AM
Tam/WB2TT
Posts: n/a
"Richard Clark" wrote in message
...
On 16 Aug 2004 11:11:54 -0700,
(SpamHog) wrote:
I have a low-power 4:1 toroid balun almost ready in a little plastic
box. In order to keep the rain out, ...
Is there any electrical con to be considered?
Hi OM,
It increases the input to output capacity (reduces isolation).
Use the lid to keep the rain out. Invest your time in its seal.
If you want a hard, hard wax, visit a dental supplier, or a nearby
laboratory. They use very hard waxes for investment molds. Or they
used to....
73's
Richard Clark, KB7QHC
It is almost impossible to keep all moisture out. This will condense when
the temperature drops. Drill some very small drain holes in the bottom
(after you have sealed it the best you can).
Tam/WB2TT
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