Valley, G. E.  1913- <br/><br/>
Vacuum tube amplifiers/ 
ed. by George E. Valley, Jr. [and] Henry Wallman [under the supervision of the] Office of Scientific Research and Development, National Defense Research Committee. 
 - 1st ed. 
 - New York:  McGraw-Hill Book Co.,  1948. 
 - xvii, 743 p.:  illus.,  24 cm. 
<br/><br/><label>LCCN: </label>48010274 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Amplifiers, Vacuum-tube.<br/>Electronic apparatus and appliances.
<br/><br/><label>Dewey Class. No.: </label>533.5  / V187v