telephone transmitter

Invented the loose-contact telephone transmitter.

The examiner accepted this argument, although mercury would not have worked in a telephone transmitter.

The telephone transmitter converts the sounds into an electrical voltage signal.

This apparatus was called the microphone, and was in reality but one of the many forms that it is possible to give to the telephone transmitter.

For instance, the complex problem of a practical telephone transmitter gave rise to a series of most exhaustive experiments.

When vibrations of speech impinged upon the resonant surface its rhythmic light-vibrations were broken, just as a telephone transmitter breaks an electric current.

It was called the Vactuphone and used the telephone transmitter to turn speech into electrical signals.

He made his first appearance in 1920 in Denver, Colorado using a microphone improvised from a wooden bowl with an inverted telephone transmitter.

Ader had arranged 80 telephone transmitters across the front of a stage to create a form of binaural stereophonic sound.

Perry Mason frowned thoughtfully at the telephone transmitter.