AW: [Elecraft] Butane torch for stripping/tinning magent wire

[Peter Zenker]

> I'm no metallurgist, but I'd do some testing to make sure 
> that temp doesn't make the copper weird and brittle. Seems to 
> me that I've had magnet wire go brittle in the flame of a 
> butane lighter. Wiggle around a stripped piece and make sure 
> it doesn't snap off easily ..
> 
> 73 de w1rt/john

John,

I have worked for long time in an non iron metall laboratory.
If copper is heated to glowing temperature, it will change it´s
modification. What remains is some type of copper which will break later or
earlier. Using a butane or propan torch you there is only a very small
chance not to overheat the copper wire. In my QRPproject manuals, even in my
translation of the Elecraft manuals, I warn to use this methode of burning
away the enamel. 

73 de Peter, DL2FI