Electronic instruments, ed. by Ivan A. Greenwood, Jr., J. Vance Holdam, Jr. and Duncan MacRae, Jr. under the supervision of the Office of Scientific Research and Development, National Defense Research Committee. Greenwood, Ivan A., ed. Holdam, J. Vance, joint ed. MacRae, Duncan, joint ed. Electronic apparatus and appliances. Mathematical instruments. Servomechanisms. TK7870 .G7 621.374 GRE Includes index. New York : McGraw-Hill, c1948. c1948. 1948 Text xvii, 721 p. : eng Radiation laboratory series, 21