RCA [Radio Corporation of America] receiving tube manual 

. - Montreal  : RCA Victor Company, c1966
. - 608 p.  : ill., couv. ill. en coul.  ; 21 cm. 
 - Technical Series DC-25 .
<br/><br/>Index 
<br/><br/><label>Source: </label> Don 
<br/><br/><label>Universal Decimal Class. No.: </label>621.385.