Penfold, R. A. <br/><br/>
Solid state short wave receivers for beginners / 
R. A. Penfold. 
 - London :  Bernards Publishers,1983. 
 - 93 p. :  ill. ;  19 cm. 
<br/><br/><label>ISBN: </label>0900162627 (pbk.) 
<br/><br/><label>LCCN: </label>sf 93090621  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semiconductors<br/>Shortwave Radio Receivers & Reception.
<br/><br/><label>Dewey Class. No.: </label>621.3841  / PEN