[Elecraft] re: Preparing Toroid Wires

[Brian Machesney]

I have a quick method that has worked well for me. It's a variation on a
theme described in the Elecraft manuals.
 
I use a quick flash from a miniature butane torch, the kind you can
sometimes find being sold as a high-powered cigar lighter. I operate the
torch at minimum power for this application, more power when I'm
lighting a cigar outside to keep the bugs off on Field Day!
 
After trimming the lead to about 3/4", I ignite the torch and start
melting the enamel about 1/4" from the toroid, moving quickly toward the
end of the wire. I know I'm done when I see the "flash" of the melting
enamel as it runs out of wire! A few gentle passes with the blunt side
of an exacto knife blade and, voila! No tinning problems or related
issues to date, with a K1, K2 with many options, KPA100 and KAT150 under
my belt.
 
Brian K1LI
K2 #3070, K1 #270


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