magnetic pickup

noun

1. a phonograph pickup in which the vibrations of the stylus cause variations in or motions of a coil in a magnetic field that produces corresponding variations in an electrical voltage.

Example Sentences

Someone was bound to realize that a steel string could be hugely amplified by a magnetic pickup and an external speaker, blasting an electronic signal.

From New York Times

The earliest chimes were operated like a music box and fitted with a magnetic pickup and amplifier.

From The Guardian