Forum Discussion
delwhjr
Jun 01, 2017Explorer
If you have wire that is same color, you may still have a marker. Look for a ribbed side vs a smooth side. The rib may be all around or only on one side. If they used this type of wire and connected it correctly the ribbed side will be the negative.
If that still doesn't solve it, go with the reverse the wires option.
A really old way is to find an old VTVM(vacuum tube volt meter). Set it on low AC and watch the needle movement on a low bass note if the meter moves upscale on the note, polarity is correct.(I know probably not practical but it did work)
If that still doesn't solve it, go with the reverse the wires option.
A really old way is to find an old VTVM(vacuum tube volt meter). Set it on low AC and watch the needle movement on a low bass note if the meter moves upscale on the note, polarity is correct.(I know probably not practical but it did work)
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