This popular article was originally published in the Jan. 16, 2019, issue of Radio World and Jan. 24, here at the website. Understanding electronics and electronic troubleshooting starts with knowing ...

Have you ever wondered what makes a loudspeaker “difficult to drive”? Do you wonder what’s so special about an amplifier that is stable into a 4 ohm load? If these are the kinds of questions that ...

Ohms are one of the specs that both speaker and receiver manufacturers use to give you an idea about their performance. Speakers and amplifiers alike are usually rated around 8 ohms, but that's not ...

For more than a century, scientists have relied on separate tools to measure the three core building blocks of electricity: volts, ohms, and amps. Each describes a different piece of how electricity ...

A battery-operated volt-ohm-meter (VOM), or multitester, is a simple, relatively inexpensive testing device that's well worth acquiring if you plan to do electrical repairs. A VOM can tell you whether ...

Most everyone that has ever purchased an external amplifier is at least familiar with the term voltage gain. Simply, it is the degree to which an amplifier actually ...