I have some Sony in-ear headphones. The lead to one earpiece has been cut through completely and I want to rejoin the two wires (which I will call 'conductors' to avoid confusion).
The two 'conductors' inside the lead are rather thin. And what is more, each of the two 'conductors' is made up of something like a dozen smaller copper wires which are woven around some very fine threads (perhaps the threads are very fine polyester yarn). The threads run along the lead as the core of the 'conductor'.
The wires of one of these two 'conductors' looks like bare copper and is unoxidised so I can probably solder to it. But the OTHER CONDUCTOR is the PROBLEM because its fine wires are enamelled.
How can I remove this enamel coating in order to be able to solder to the fine copper wires of the 'conductor'?
Below is what I have tried.
Can you advise?
Will
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Maybe my general technique is not delicate enough or maybe I am being too clumsy but this is what I have tried with no success:
(1) Using fine glasspaper but it seems to tear the fine wires rather than strip their enamel away. Even if the wires don't break, there is still a portion of uncleaned enamel of the inner sides of the fine wires.
(2) Using a match to burn off the enamel but this leaves a black deposit which I have to scrape away with glasspaper and I am back to the beginning.
(3) Using a gas flame always seems too fierce as it burns through the wires.
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