Is it center positive?
1865105
If what you mean is the part that plugs into the device (not the wall) then yes the center part on the inside is positive and the outer shell is negative. I BELIEVE, NOT 110% SURE THOUGH.
1865106
Don't know I use it to power a Logitec powered speaker that is 12v 1.5 amp per the back of the speaker. Works perfect
1190239
A positive should either be a + or =. I'm not sure what the heart shaped window test is, so I could be wrong.
927316
Does not really matter, but I am thinking I used positive side. Not at home to check.
1943681
If the top line only appears, it is positive. If both lines appear, it is negative.
2163702
It took me a minute to understand your question, but I assume you are referring to the center of the 5.5mm x 2.1mm plug. In that case, yes, the 2.1mm diameter center (female) part of the plug is positive. And the 5.5mm diameter outer collar is ground (negative). I don't have that device right in front of me but I measured an identical plug and even took it apart to check. The outside collar actually measures 5.334mm or 0.210-inch diameter according to my micrometer. This is probably too much information. Anyway, hope this helps.
1333756
The polarity of the T connectors is standard -- the top bar of the T is positive and the post is negative. The labels on the diagram in the instructions are misleading since they are opposite to the orientation of the T sockets.
940411
anyone with the adapter, can you help? I need to know if the tip is center-positive? thank you for your time!
1926939
center pin is positive. The all metal that you see just inside the rubber is negative. Any question 719-331-6199
1916908
Yes, I leave mine on!! I try to keep it fully centered, and so far-so good....no complaints
2055223
Been a few months since I installed it, but I believe it's centered and keyed for alignment.
2124681
I'm not positive if it's center balanced but I think it is. If I put a guy up, it will stay up once I let go. This is a nice table and after a year of purchasing it is still balanced and works perfectly.
1419850
I don't believe so. I think they were centered. The unit is high up in my skylight shaft, so I cant readily check it.
1923894
If you like things perfectly centered, then you'll want to keep it centered. I installed two of these in my master bathroom and they are not perfectly centered to my counter but I'm okay with it.
516223
Yes, you can feel it centering. You can feel the springs stop fighting you.
285435
I can't say with 100% certainty, but usually the center pin is positive.http://en.wikipedia.org/wiki/DC_connector#Cylindrical_connectorsLast sentence in that section.
351734
Yes, the graphite is centered. No, I have not experienced the tips breaking easily.
86679
The size was good and center position was positive. Every thing worked as specified.