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Hope this is the correct place to post this question.
I have an accessory that requires DC input. I also have a DC power source. However, is there a cheap and/or easy way to tell which side of the power source is positive? The manufacturer did not mark it for some reason.
Thanks.
I have an accessory that requires DC input. I also have a DC power source. However, is there a cheap and/or easy way to tell which side of the power source is positive? The manufacturer did not mark it for some reason.
Thanks.