How to terminate cotton isolated wire.

When you have not worked with silver wire before,  you will notice it will bend different than copper wire.  Initially silver is weak, but after bending, it becomes harder. Copper will do the same, provided it is out glowed, but the effect is not as much.

At 0.8mm or more, you can model single wires, to make a nice cable tree from it.  Such a cable tree won't need to be mounted to the chassis, because it will form a solid construction, that is  held in place by the soldered wire ends. 

For best results it is recommended to solder it with "silver" solder.  This is no  pure silver solder, but an alloy containing silver.  Litz wires are best soldered with liquid solder flux, and not with solder with resin core.  

You need white wood glue.
the cable is cut off nicely with a wire cutter.  For Teflon it must be new and harp.  We sell a low cost one, for this purpose.  When you keep it for this work only,  it will stay sharp. 

Attention:  Make sure you don't push back the cotton isolation.

Apply one drop of glue, and lay the wire as in the picture on the left.
3) The short end of the wire will be as in the picture. Start rolling the thread from the left to the right, until the wire is fully covered. Cover 10mm.
Now, cut off the loose ends. 
Apply another drop of glue on the cotton, with your fingers.  After this,  it will look as in the next picture.
Let it dry for one minute. The glue will dry quickly. No need for a perfect end, we will cut this off anyway. 

 

Cut off  5mm with a razor blade or a very sharp knife.  You need a new, sharp blade for this. 

Because silver is harder than copper, you will can not cut off the core by mistake. 

When you're ready,  the core sticks out.

You will see it goes very quick after some practice.

The result is really wonderful,  and reminds of 1920's radios and instruments, when manufacturers had still time to do this termination by hand. 


Ordering code:
610-007-76
For best results the silver is dipped in liquid flux before soldering.  We offer a liquid resin flux in a bottle, with a small brush.  This flux is acid free, and may be left on the wire.