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How To Make A Joule thief And Use Dead Flashlight Batteries

I show you how to make a very simple circuit called a Joule Thief which can use a dead flashlight battery to power LEDs and other devices.   This circuit contains only a few components but performs an amazing act of drawing power from a dead flashlight battery long after it h

Sainsmart DSO238 Pocket Oscilloscope Kit

I bought the Sainsmart DSO238 oscilloscope kit over the others because of its larger display of 2.8 inches compared to the others with 2.4 inches. Besides that they all seemed to be about the same.   The price was about $25, which is pretty good for a pocket oscilloscope I th

How To Track A Cell Phone

These days, modern technology has made it possible to use cellphones in various ways. One amazing function you could enjoy is the ability to track a mobile phone. The Importance of a Mobile Phone Tracker Whether you wish to quickly locate your very own cellular phone in case it ge

How to measure resistance with a digital ohm meter

Learn how to measure an unknown resistor or potentiometer with a digital ohmmeter. This is a simple DIY article that will have you measuring resistance like a pro in minutes.   Depending on your digital multimeter, there will be a range of resistance settings. When measuring
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