The basics of linear voltage regulators what they do, how to wire them up, and where to find them. Then I give a basic example of how to build a 5V supply that can power USB powered gadgets.
5 volt regulators: http://www.amazon.com/exec/obidos/ASI...
(Amazon affiliate link)
This video builds on material covered in my tutorial on building unregulated power supplies:    • Diode Tutorial & How to build an AC t...  
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