A major scientific development, which will mean the saving of thousands of dollars worth of electric power annually through increased efficiency of the vacuum tube, or "electric valve," in controlling ...

A vacuum tube, known as the first electronic device, is used to switch, amplify, or commutate electric signals. In the past, vacuum tubes functioned as a main part of a diverse range of electronic ...

Nothingness might not sound very useful. In fact, the opposite is the case because nothingness – in the form of a vacuum – has played a major role in the history of electronics. Until the invention of ...