Graf, Rudolf F. <br/><br/>
25 solid-state projects / 
[by] Rudolf F. Graf and George J. Whalen. 
 - New York :  Hayden Book Co.,  1972. 
 - 117 p. :  illus. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics--Amateurs' manuals.<br/>Transistor circuits.
<br/><br/><label>Dewey Class. No.: </label>621.381530422  / GRP 1972