On 8/7/01 6:04 PM, Greg Gobleman at k9zm@frontiernet.net wrote:
>I have wound several and that is the easy part. These are the
>W1JR type, illustrated in W2FMI's book. The problem has been
>sealing them against moisture and insects etc. Another problem
>is relieving the stress on the coax so it does not break.
Someone else suggested in a direct e-mail to go to the Home Depot
electrical and buying a can of Plastic Dip. A bead balun could then be
successively dipped in the Plastic Dip to seal and protect it.
Seems like a W1JR balun might be a candidate for such treatment.
(Although the plastic would certainly increase the inter-winding
capacitance and lower the series-resonant frequency.)
Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@arrl.net
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901
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