Well, don't know for you, but i consider this a fail ..... i was just mounting an apparate, and needed some shielded cable on-the-fly, so sacrificated an old usb cable ..... they have some decent shielding, usually, the wires are surrounded from an aluminium foil, then there's the shielding "sock" made in thin wires ..... well, this one had also a thin bare copper wire, like an awg28 inside the alu foil, but i thoughd it was just an extra .....
Ready for solder all, the shielding sock don't solder ..... it was identical to any other one made with thin tinned wires, so i had no idea about why it don't solder, and tried anything ..... 4 different fluxants, including a corrosive one, scrapping the wires with a blade, filling it of soldering gel, heating til 450 degrees, 3 different soldering alloys wires ..... nothing to do, it don't solder, the alloy don't stick on it, and the wires just become dark and dirt ..... i was thinking i lost my soldering skill (and it's hard, after almost 35 years of soldering
) .....
Then i throwed a piece of that shielding sock in the can where i have the PCB etching solution for error, and *PSSSSCCCH* ..... 30 seconds of smoke and boiling, and the sock totally vanished ..... :crackup:
IT WAS ALUMINIUM !!!!! :crackup:
Yes, someone made shielding for usb cables with ALUMINIUM WIRES !! ..... this gives also a sense to the extra bare copper wire, it was for solder the shielding to the connector ..... but i never meet before shielding socks made in aluminium wires, so not imagined it ..... half hour of failing at soldering ..... damn manufacturer, if i find him, guess where i put him all the rest of the cable ? :eg: :eg: :eg:
