[sdiy] Repairing headphones

[RMC]

Beware that quite often, the flex also has intertwined within it a number of 
fine  polypropylene or nylon strengthening members, and these need to be 
teased out from amongst the conductors. You can then use a knife or probably 
just the solderingiron heat itself to remove the varnishing on the conductor 
strands prior to soldering.

The strengthening members won't help the fluxing process, which is why you 
need to get rid of them, whereas the conductor strands may either be bare or 
"enamelled" with a self-fluxing polyurethane varnish.

Cheers

RMC, England

----- Original Message ----- 
From: "harrybissell" <harrybissell at prodigy.net>
To: "Scott Bernardi" <sbernardi at comcast.net>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, December 29, 2004 7:27 PM
Subject: Re: [sdiy] Repairing headphones


> Yes... they use a form of magnet wire in a multistrand cable. The one I
> fixed
> had six strands bare and one coated.   The enamel coating can be scraped
> off with
> a knife, or burned off with high temperature. One of those micro-torch
> butane lighters
> might work. I use x-acto knife...
>
> H^) harry
>
> Scott Bernardi wrote:
>
>> Is there a trick to soldering those micro leads in a set of
>> headphones? My present set is developing a short in the molded jack. I
>> tried to replace the jack on a set a while back and found it
>> impossible to solder the leads - they seemed to be coated with
>> something.
>> It seems a shame to junk a decent set of headphones because of
>> something that >should< be so easily repairable.
>