[R-390] Mechanical Filter Repair

[David C. Hallam]

There are several magnet wire insulations that are solderable and don't need
to be stripped, Formvar isn't one however.  Having worked for a number of
years in the manufacturing of magnet wire, I can say that burning off the
insulation with a small flame is a standard method for removal of
nonsolderable enamels.

David
KC2JD/4
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net
> [mailto:r-390-bounces at mailman.qth.net]On Behalf Of Bill Hawkins
> Sent: Thursday, June 14, 2007 12:42 AM
> To: r-390 at mailman.qth.net
> Subject: RE: [R-390] Mechanical Filter Repair
>
>
> "There's probably a solvent that will work but I never found one
> that acted very quickly."
>
> Fine enameled wire ought to respond to the flame from a match.
> No nicks. Polish the copper a bit and away you go.
>
> Bill Hawkins
>
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