Witts, Alfred Thomas,  1899- <br/><br/>
Radio upkeep and repairs, for mateurs :  a practical handbook on faultclearing and set maintenance / 
Alfred Thomas Witts 
 - London :  Sir ISAAC Pitman,  1942 
 - ix, 217 p. :  Illus,diagrs ;  17 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic mail systems--Evaluation<br/>Wireless communication systems
<br/><br/><label>Dewey Class. No.: </label>131