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UberCool MiNi RECHARGEABLE POWER SUPPLY
Hack 12 volts chinese led bulb to usb power led bulb with strong brightness
Easy and work project
Inexpensive 5 volt Switching Power Regulator
Use that old PC Power Supply as a high current +3.3, +5 or +12 volt resource
Basic 5 Volt Power Supply
Powering computer speakers from a USB cable
Small Emergency Power System
LM317 Variable Power Supply
Switch Mode Altoids iPOD Charger using 3 'AA' batteries
A Good Use for an Old Phone Charger
Posted:May 2, 2009
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