electronics, especially in radio technology.
Any of several techniques supposed to detect and modulate "life forces" and to provide healing using various electric black boxes.
The component of an audio system that receives radio broadcasts.
A musical.
A person who tunes a piano or organ.
A device, electronic or mechanical, that helps a person tune a musical instrument by showing the deviation of the played pitch from the desired pitch.
On a musical instrument, a peg or mechanical device that changes the tension, and hence pitch, of a string.