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LM317 portable voltage regulator
First Instructable for me. I've been wanting to build an adjustable voltage regulator in an Altoids tin for quite some time. A variable voltage of between 1.2 & 6volts for testing small dc motors...
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portable 20w solar charger
I've been charging 18650 rechargeable batteries from a small 12v battery solar charger for a few months now. Not impressed with the charge rate, spending an entire sunny day only to maybe have a...
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Inexpensive solar 18650 battery charger
Having recently completed my 20w solar charge controller well almost, I still have to finalize the power output. As it stands I'm able to charge such items as battery banks & cellphones via 5v usb....
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1w portable led light
I like to draw, design, sketch, read in bed at night before going to sleep. With the wife sleeping beside me I decided to design a light I can use that will stand on it's own while throwing a light on...
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