Mar 21, 2008 #17 Razako 0 Joined Mar 17, 2006 Messages 4,301 Points 113 Find an ordinary LED. The longer leg should be negative. Hook the adapter up to the LED with a resister. If the LED turns on you just found the polarity of the wires.
Find an ordinary LED. The longer leg should be negative. Hook the adapter up to the LED with a resister. If the LED turns on you just found the polarity of the wires.
Mar 21, 2008 #18 rog8811 0 Joined Jul 24, 2007 Messages 2,749 Points 0 If the output is 2 black wires bonded side by side they usually mark the positive side with a ridge along the side...... Regards rog8811 Attachments cable_marker01.jpg 53.8 KB · Views: 161
If the output is 2 black wires bonded side by side they usually mark the positive side with a ridge along the side...... Regards rog8811
Mar 21, 2008 #19 G glona 0 Joined Oct 14, 2007 Messages 311 Points 0 nope thear free both not hooked togeather lol
Mar 21, 2008 #20 charleytown55il 0 Joined Oct 1, 2007 Messages 466 Points 0 also, when the wires are bonded side by side, the negative will have white dashed running on the wire.
also, when the wires are bonded side by side, the negative will have white dashed running on the wire.
Mar 21, 2008 #21 Razako 0 Joined Mar 17, 2006 Messages 4,301 Points 113 If you post a picture of the adapter in question I can probably tell you which wire is which.
Mar 22, 2008 #22 M maxpcuser 0 Joined Mar 3, 2008 Messages 81 Points 0 Well i know on my wall wort the positive wire has the white line on it