Semiconductors like silicon can be made into transistors, which are small amplifiers.

The key to the new invention is a tiny amplifier, small enough so that 1,000 can be placed on a single computer chip.

Equipment back in 1970 was very basic, with disco decks and a small amplifier.

A small amplifier is often necessary to bring the guitar up to audible level.

She held up a stethoscope that appeared to be attached to a small amplifier.

In Terran-like air he had often slipped small amplifiers into his ears.

The smallest amplifier in the series was the F30.

The following Saturday he returned to set up his mike and two small amplifiers.

It is a relatively small amplifier, having one twelve inch speaker.

He used a small amplifier, so that no one could miss his words.