I just purchased some cheap cat5 cable off ebay only to find that it isn't copper or copper clad aluminium (CCA). I cannot solder it. At first glance I thought is was just tinned multi-strand copper, but it definitely isn't.
It appears to be just plain aluminium or something that looks like aluminium. It is multi-stranded, not single core. It feels like copper in terms of springyness and bendability but looks just like aluminium even under a microscope when scratched with a blade.
The packaging carries N100MK which could be this,
Has anyone seen anything else like this?
Mike