[Metalab] Kalte Lötstellen.

[Harald Schilly]

2011/9/7 ninnghizidha <ninnghizidha at gmail.com>:
> Wizard sagte mal vor ein paar Jahren, dass er kalte Lötstellen mit bloßem
> Auge erkennt. O_o


I don't know what exactly he means or what happens on the chemical
level, but heated lead oxidizes when cooled down. this also depends on
foreign materials that are used to create clean solder joints.
probably, it's a subtle change to gray.

H