Valley, George Edward,  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/>AMPLIFICADORES, TUBOS AL VACÍO<br/>ELECTRÓNICA, APARATOS Y APLICACIONES
<br/><br/><label>Dewey Class. No.: </label>621.3841324