Valley, George E. 1913- creator ed. Wallman, Henry. joint ed. text nyu New York McGraw-Hill c1948 1948 1st ed. monographic eng

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xvii, 743 p. : ill. ; 23 cm. ed. by George E. Valley Jr. a and Henry Wallman [under the supervision of the] Office of Scientific Research and Development, National Defense Research Committee. Includes index. Amplifiers, Vacuum-tube Electronic apparatus and appliances TK7872.A5 V3 621.384 VAV 48010274 DLC 760113 20150115101555.0 6947816