"Matthias Czech" wrote in message
...
Am 12.01.2013 17:06, schrieb Rick Hughes:
[soldering problem]

If that helps give an idea of cable type ...I have taken a pic:
http://i771.photobucket.com/albums/x...psaac86758.jpg

Is there a particular technique to soldering these ...... the issue is
stripping the cores, it just seems to fray and get in a mess.

Just an idea (may be a bad one): Try to burn off the insulation with a
pencil torch or even (if not at hand) a lighter.
May work, if the insulation is cotton-based.

These cables can sometimes be a bundle of thin enamelled copper wires, with
the varnish in different colours for identification. The idea is to give a
thin flexible cable that survives bending well. It's often used in RF
applications (Litz wire) as it has good high frequency characteristics,
although this will be of rather less impotance at audio frequencies.
http://en.wikipedia.org/wiki/Litz_wire

Soldering it mainly involves getting the end of the bundle hot enough to
cook off the enamel - so a decent sized iron, at a slightly higher
temperature if possible, usually does the trick.

Charles F