hey there i am back!.This solar joule thief is my 3rd project. my solar pannel was working good but it wasn't full filing my power needs so i buit a solar joule thief. materials needed - Electronic components needed-transistor- 2n3904 resistance -1oo ohm/1kilo ohmchokepcbwiresledsolar panneltools...By: p mishra
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from Instructables: exploring - technology - robots http://ift.tt/1MJKmQI
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