vacuum-tube amplifier

vacuum-tube amplifier

[′vak·yəm ¦tüb ′am·plə¦fī·ər]
(electronics)
An amplifier employing one or more vacuum tubes to control the power obtained from a local source.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Summary: This hunt for emotion and character means that many audiophiles use vacuum-tube amplifiers
This hunt for emotion and character means that many audiophiles use vacuum-tube amplifiers, which are still being made by innumerable brands.