Radio designer's handbook / 
Edited by F. Langford-Smith. 
 - 4th ed. 
 - London :  Iliffe books,   c 1967. 
 - xl, 1498 p. :  ill. ;  21 cm. 
<br/><br/> Includes index. 
<br/><br/>333  333 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology.
<br/><br/><label>Dewey Class. No.: </label>621.3402 / L263r