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Many electronic devices, from computers to TVs to cell phone chargers, require various DC (direct current) voltages to supply power to circuitry. For those appliances and devices that get their...

A thermocouple is a component used in electronic and certain mechanical circuits. It is composed of two dissimilar metals joined together at one end. A voltage develops across the metals. This...

Today one of the most useful tools for trouble shooting electrical issues is the DVOM-Digital Volt Ohm Meter. This versatile device can look into circuits and diagnose trouble. It is capable of...

Today one of the most useful tools for trouble shooting electrical issues is the DVOM-Digital Volt Ohm Meter. This versatile device can look into circuits and diagnose trouble. It is capable of...

Power adapters (or power supplies) are a ubiquitous part of our electronics-laden lifestyle. A power adapter takes the output of one power source, like a 120-volt AC wall socket, and converts it...

Banana plugs get their name from the fact that in the center, these plugs have a slight swelling to make absolute positive contact with the circuit they are supplying. They are generally used to...

Fuses serve a vital function in electronics--preventing electronic circuits from damage when there is an extra voltage surge or short circuit. They come in many types and are used for many...

Pretty much all batteries use DC power to charge, but most convert it from an AC power supply. In most cases, 120-volt AC current is run from a wall outlet into a power supply that converts it...

If you're just beginning your study of electrical circuits, you've probably become familiar with direct current (DC) circuits such as those created using battery power. While DC is straightforward...

Travelers to foreign countries can run into a lot of complications, including culture, language and finance. The last thing some think will be an issue is the type of electrical power, but...

The transformer is one of the key inventions fundamental to creating the electrified world. The AC electric model, with its high voltage power transmission, is completely dependent on transformer...

Modern civilization would be impossible without the technology of transformers. The very concept of AC electricity does not work without them, so in a world without transformers, many of our...

When an electronic device, powered by an outlet, stops working, the power transformer may be defective.This guideline will tell how to check the windings.

Using and collecting vintage radios is a hot topic right now and has been for years. When you buy an older radio though, there aren't any guarantees that it may work, which means you might need to...

An expensive piece of test equipment used to analyze and graph the waveforms of electric signals (AC and DC), an oscilloscope may be out of the price range of most hobbyists. Though certainly not...