In today’s world, power amplifiers are used in many devices for a wide variety of applications. In general, an amplifier takes a low power input and regenerates the signal at several watts higher.

(Editor's Note: There are links to the previous parts of this series at the end, below the author's biography.) Now that we discussed some of the basic applications for an op amp (operational ...

WiiM has been throwing rocks into the affordable hi-fi pond for a few years now, and has been successful enough to make us, ...

How a paper substrate and biodegradable circuitry can be used for basic circuits. How the researchers fabricated and connected active and passive devices literally “on paper.” Details of their first, ...

I've got a pair of standard non-powered speakers. I'd like them to play whatever Chromecast Audio is playing. I assume/understand I'll need to buy an amp. Here's my question though...do I really need ...

In the first article about measurement systems we looked at sensors as a way to bring data into a measurement system. I explained that a sensor measures physical quantities which are turned into a ...