a. The success of modern military operations, as well as of the peacetime activities of the armed forces, depends in a great measure on signal communication facilities. Whether on the offense or the defense, in the front lines or far behind the lines, exchange of information is vital to the successful movement of personnel and equipment. On the ground, in the air, or below the surface of the seas, electronic devices are in daily use, and in every one of these uses the electron tube is a vital element (fig. 1). b. Fundamentally, the electron tube is a valve which provides the means of conducting electrons through the enclosed space within a glass or metal container.
DesignationTM 11-662
EditionJan 1955
StatusSuperseded
Pages229
FunctionComms Signal
CollectionHistoric
Public domain (U.S. Government work)