Unless you are using some exotic insulated wire, a few
seconds of exposure to the flame of a butane lighter will
easily burn off the enamel. After you have done that,
there will be a little oxide and smutz on the wires, so a
gentle pull through a folded piece of sand paper will
clean that right off.
Way easier than scraping, or sanding the insulation off.
-Chuck Harris, WA3UQV
On Tue, 25 Mar 2025 08:31:25 -0700 "Stan Dye via groups.io"
<standye@...> wrote:
If you didn't scrape the enamel off the newly-twisted 'A' center tap
on the right side, those two wires won't contact each other, and you
won't have continuity between the two left 'A' points - even if you
scraped the enamel off the outside of the twist. If you have the
finer-gauge wire, you can burn the rest of the enamel off with solder
and a hot soldering iron, if you have the thicker .6 wire, you need
to un-twist the A center tap and scrape the wires first, then twist.
Stan
