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I found liquid soldering flux to be a great aid in soldering oxidized PCB pads. But if this is used for AC maybe you should not be soldering it.Old stranded lamp cord is very hard to solder, due to tarnish or a layer of oxide.
Anybody have a recommendation for a chemical, in the form of liquid or paste, that would help the solder wet the copper?
Old stranded lamp cord is very hard to solder, due to tarnish or a layer of oxide.
Anybody have a recommendation for a chemical, in the form of liquid or paste, that would help the solder wet the copper?
Sometimes one has to mechanically scrape.
They make wire scrapers for this, e.g. for taking the varnish off enameled magnet wire, cleaning up oxidized resistors, leads, and stranded cord![]()
Normally I just carefully scrape it with a knife or something. My best solution is to replace the lamp cord; it is not really that expensive.
Old stranded lamp cord is very hard to solder, due to tarnish or a layer of oxide.
Anybody have a recommendation for a chemical, in the form of liquid or paste, that would help the solder wet the copper?
The OP was about lamp cord. 2 conductor stranded wire. On the stuff I have worked with the strands were bare copper.
You have a manufacturer name? I've never heard of this.Sometimes one has to mechanically scrape.
They make wire scrapers for this, e.g. for taking the varnish off enameled magnet wire, cleaning up oxidized resistors, leads, and stranded cord![]()
You have a manufacturer name? I've never heard of this.
so I was wondering if anybody made a fast-evaporating mild acid that would do this.