Spangenberg, Karl Ralph, <br/><br/>
Vacuum tubes. 

 - 860 páginas 
 - McGraw-Hill electrical and electronic engineering series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tubos de vacío
<br/><br/><label>LC Class. No.: </label>TK7872.V3  / S6