This question reveals the extent of my ignorance, but I need to change the barrel connector on a particular cable by cutting the cable, cutting the cable which connects the correct barrel connector to a power supply, and soldering the wires together. Do I need to solder the two wires in a particular configuration or can I attach them either way?
Yes.
You should test the polarity of the connection before cutting the wire. Then ensure that it is the same after re-termination.
You should test the polarity of the connection before cutting the wire. Then ensure that it is the same after re-termination.
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