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The 12volt DC male-plug wiring for access


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toplegend 
Member - Posts: 1
Member spacespace
Joined: March 04, 2015
Location: Ohio, United States
Posted: March 04, 2015 at 9:37 PM / IP Logged Link to Post Post Reply Quote toplegend
If you have two black wires, one with silver wire and one with copper wire. Copper wire is + pos / silver - neg.
Robert Abbe
oldspark 
Gold - Posts: 4,913
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Joined: November 03, 2008
Location: Australia
Posted: March 05, 2015 at 2:36 AM / IP Logged Link to Post Post Reply Quote oldspark
Unless connected the other way around.
If your statement is a statement, what about other colors?
howie ll 
Pot Metal - Posts: 16,466
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Joined: January 09, 2007
Location: United Kingdom
Posted: March 05, 2015 at 9:51 AM / IP Logged Link to Post Post Reply Quote howie ll
Red and black?
White and WHITE/ black? Japanese.
Red and brown? DIN
Brown and black? UK pre 70s
Is the OP a comment or a question.
How to test? Meter it, or continuity to chassis of object to be powered.
oldspark 
Gold - Posts: 4,913
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Joined: November 03, 2008
Location: Australia
Posted: March 05, 2015 at 3:52 PM / IP Logged Link to Post Post Reply Quote oldspark
I thought it was spam so I merely replied with the obvious...
If I'm wiring and I need to know which conductor should be what I'll look it up. EG - is it the copperish or silverish terminal on a circuit breaker or switch that should be the more positive?
[ Not that it's usually relevant anyhow - IMO not using brass nuts with stainless bolts (or vice versa) or copper headgaskets with alloy engine heads (and iron blocks) is far more important. ]
But to make the OP statement IMO is totally useless. As if we would NOT test to confirm! (read HowieII's signature)
And as a statement it is severely lacking qualification and application.

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