Röhren-tabelle. 

 - [Berlin]  Deutscher funkverlag  [1946] 
 - 48 p.  diagrs.  21 cm. 
<br/><br/> Advertising matter: p. 42-48. 
<br/><br/><label>LCCN: </label>af 47002748  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vacuum-tubes.
<br/><br/><label>LC Class. No.: </label>TK6565.V3  / D48