In my old staff job I used to repair a lot of cables. I'm starting to get pretty good with the more fiddly jobs, small connectors etc.
However, like many, I struggle with the litz type cable that COS11's and other lapel mics are made from. I feel like i'm soldering bits of plastic. Specifically the black wire in the mic seems to have a strand of strong nylon in the core, that remains when the copper strands seem to be burnt away during tinning.
I'm not expecting a simple solution to this, but i'm going to master this skill even if it kills me. Can anyone advise on the best solder and temperatures to use whilst tinning and terminating this stuff. I've tried temparatures from 360 - 450 degrees celsius and my success seems to be more luck that judgement at the moment.
I'm using lead solder, burning off the insulation, rather than scraping it off and putting a dab of pen flux on the connector contacts. Any suggestions? Please don't tell me to send it to a pro wireman, i'm trying to become one!