Since the 1960s, most electronic amplifiers have been built with transistors.

Numerous types of electronic amplifiers are specialized to various applications.

A brief introduction to the many types of electronic amplifier follows.

The gain available from a single stage is limited and low compared to electronic amplifiers.

Thus, it allows the device to be used as an electronic amplifier.

Though the image through the electronic amplifier was sharp, Adele couldn't hold it steady enough to be of much use.

It is a form of electronic amplifier with unity gain.

Devices similar to the electronic amplifier are made in mechanical engineering.

From the 1920s until the 1950s, electronic amplifiers used vacuum tubes.

However, electronic amplifiers with vacuum tubes were heavy, and they produced a lot of heat.