wonstoneyoo

Seoul, Korea, South

Joined March 5th, 2014

4Instructables

7,757Views

14Comments

4Followers

an electric engineer with State issued license

wonstoneyoo.blogspot.kr

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wonstoneyoo's Instructables

Lazy Boy's RF Switch Box
Li-Ion Battery Pack to Replace 9V Battery for DMM
Voltage Alert Pen Hack
18650 Battery Charger, Transformed From Galaxy S Charging Cradle

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