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[DIY Machine]DIY PSP Plug-in lithium battery
■ Introduction ■ contact with PSP also has more than a year, and in the process of using the small P, one question has always troubled me, the small P Comparing power consumption, an original equipment batteries for only the use of 5 ~ 6 hour...
NEW:2008-09-22 17:26:12  View Content...
[DIY Machine]DIY electric motor by battery and screw
Material:Screws, alkaline batteries, wire, magnet   Relying on these four things, no other tools could be achieved within 30 seconds, turn the speed of thousands of motor Done, in fact, than the preparation material is also simple...
NEW:2008-06-29 16:54:57  View Content...