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Home▸ Forums▸ 68kMLA▸ Black PowerBook 45W adapter with white iBook — #9
Post #9 by Bunsen
Source Forum68kMLA
CategoryHardware
Post DateSun, 19 Dec 2010 - 19:16
Original URLhttps://68kmla.org/bb/threads/black-powerbook-45w-adapter-with-white-ibook.21859/
Post
Inside is +, outside is -.
From memory, this is wrong for starters. There are two contacts on the inner pin, like a headphone jack. One of them is + and the other is -. The outer ring is just a ground shield, connected to the sheath of the cable and thence to ground in the adapter.

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