Arto Savola
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DIGITAL POTENTIOMETERS TO CONTROL LIGHT AND SOUND.Normally lurking unseen inside stereo systems, the digital potentiometer needs no adjustment, because it adjusts itself. Its fluctuating resistance can change the color or brightness of a light, th.

The post explains a simple yet extremely useful induction heater circuit concept which can be further implemented for making induction hot plates and induction cookers.

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Read our latest article How to use multimeter on

How to use a multimeter infographic: Learn the best way how to use a multimeter to test voltage, capacitance, and frequency.

Home made induction forge from a microwave. This seems like a great yet awful idea.

In this project you& learn step by step how to modify a microwave oven transformer into a high-current device that can pump out 800 amps of electrical current. If you liked the Metal Melter you saw in a previous project, here& how you can make your own!