howling tube

howling tube

[¦hau̇l·iŋ ¦tüb]
(acoustics)
A vertical open tube with a piece of gauze in the lower half which is placed over a flame to make the tube produce powerful sound waves with many overtones.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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