In sci.electronics.design John Woodgate wrote:
I read in sci.electronics.design that Ian Stirling
wrote (in
) about 'wire size
question', on Fri, 8 Apr 2005:

Blowtorch to heat to dull red heat, and then wipe insulation off.

I'd like to see you do that with 30 gauge wire. For an encore, you could
do it with 46 gauge. (;-)

Actually, I do it regularly with .15mm wire (I don't know the guage)
Of course, you have to be able to set the blowtorch so that it's producing
a yellow flame that's not too hot, a lighter works well.