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-   -   Polarity on power tips (https://www.flyertalk.com/forum/travel-technology/1300965-polarity-power-tips.html)

Yaatri Jan 10, 2012 3:14 pm
Polarity on power tips
 
The power tip on my netbook had become very temperamental. SO I took it apart. I did not not polarity of the tip. Is polarity standradised or does it vary from manufacturer to manufacturer?
The netbook I have is MSI U100 series. I do not want to end up with reversed polarity.

alanh Jan 10, 2012 4:11 pm
No, it's not standard. The label on the netbook should indicate which is positive and which is negative -- see the sample label here.

Yaatri Jan 10, 2012 4:25 pm
Thank you. I found it. Now anther question. Which is the live conductor in a coax dc cable. The central conductor or the outer conductor? I I know I could check with a multimeter, but I can't my hand one one right now.

NPF Jan 10, 2012 6:25 pm
Originally Posted by Yaatri (Post 17788670)
Thank you. I found it. Now anther question. Which is the live conductor in a coax dc cable. The central conductor or the outer conductor? I I know I could check with a multimeter, but I can't my hand one one right now.
It's usually the central one, but this is not universally adopted; you need to check it.


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