01099cam a22003011 4500 6947816 BD-DhUL 20150115101555.0 760113s1948 nyua 000 0 eng 48010274 (OCoLC)1924905 DLC ViU OCoLC DLC BD-DhUL premarc TK7872.A5 V3 621.384 VAV Valley, George E. 1913- ed. Vacuum tube amplifiers, 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. 1st ed. New York : McGraw-Hill, c1948. xvii, 743 p. : ill. ; 23 cm. Massachusetts Institute of Technology. Radiation Laboratory. Radiation laboratory series, 18 Includes index. Amplifiers, Vacuum-tube. Electronic apparatus and appliances. Wallman, Henry., joint ed. 7 cbc oclcrpl u ncip 19 y-gencatlg ddc BK 31389 31389 0 0 ddc 0 621_384000000000000_VAV 0 NFIC 59210 DUSL DUSL GEN 1952-04-05 Purchased 621.384 VAV 59701 2015-01-15 2015-01-15 BK