Hi, I'm sorry to keep sounding really dumb, but polarity is really scaring me! I thought I understood from Fabian's original post that the order the plus and minus was printed on was what I was looking for on a new adapter, but the explanation below made me suspect I was missing the boat:
"Sorry, Janice, but you have to dredge up a 10V adaptor. I can't understand the polarity indicators, the way you show them, but I know it's hard to reproduce this in typing. The polarity is important: the little diagram tells you how it's set up on that particular adaptor. The (-) symbol will have a line connecting it to either a dot or the ring surrounding it. These represent the center pin (or hole on the end of the plug), and the collar (or metal shaft on the plug, with a plastic insulating collar at the tip, separating it electrically from the hole). If the center dot is positive on your ORIGINAL PowerCD wall transformer, then you must use a power adaptor with a positive center contact (the hole in the center of the plug), and of course the outside shaft (the metal barrel of the plug) is negative." So, when Fabian says that polarity must be Polarity: (-)--C--(+) does that mean that the plus sign must be connected to the center dot inside the capital C with a solid line? Can anyone suggest a good primer I could read to understand all this electrical stuff? I have a bunch of orphaned adapters in my classroom computer lab, and bin of orphaned donated equipment, but I can never seem to make a perfect match. Thanks, Janice -- PowerBooks is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> PowerBooks list info: <http://lowendmac.com/lists/powerbooks.shtml> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/powerbooks%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
