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How to Make 3.7 to 220v Mini Inverter

Learn how to transform a 3.7V battery to power a 220V device with this step-by-step mini inverter tutorial. Discover the ...
YouTube on MSN

How to Make a Magnet Motor Generator 220v Using DC Motor

In this comprehensive tutorial, you will discover the step-by-step process to construct a Magnet Motor Generator capable of ...
EDN

LED at 220V Circuit

LED has become more and more popular for use as light indicator because of its low cost and long life. Unfortunately the LED works only at low voltages and even then you need to use a resistor in ...