hy .. i've got a few months ago a PowerBook G4 1GHZ 1GB RAM 60 GB HDD etc... the problem is that i used to power it throu the battery since one day the battery got screwed... what i need are some schematics on building an ac adapter.. or if someone could please check a G4 1GHZ ac power adapter's voltage on all 3 points on the male plug (there are 3 ) (sorry for the bad english hope you understand what i mean). i'm desperate...