Build a 9volt to USB charger for $3

Posted on December 10, 2013 by robertwilkie

Interesting build.  I am not sure about the $3 cost yet (gotta check out the link for the board).  But if its right, this is a pretty cheap solution for a charger for USB.

http://www.instructables.com/id/300-Altoids-Charger-EASY-BUILD-CHEAP/

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