I read in sci.electronics.design that Jim Thompson
wrote (in
) about 'wire size
question', on Fri, 8 Apr 2005:

IIRC there's something called Formvar that will self-strip upon
application of a tinned iron.

Once upon a time, there was 'flux-enamelled' magnet wire, which was
really easy to solder, but the coating was fragile. Then there was
'solderable', which required an iron temperature substantially higher
than for normal soldering. But that gave off toluene diisocyanate, which
is poisonous if you breathe it for 20 years, so you had to use it under
extraction, and that made it fall out of favour.
--
Regards, John Woodgate, OOO - Own Opinions Only.
There are two sides to every question, except
'What is a Moebius strip?'
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk