Phillps data and Handbook  pt. 3, electron tubes-special quality tubes, miscellaneous devices 
Philips Gloeilanapenfabrieken 
 - Netherland  Technical Publications Department  1970 
 - [various pagings.] 
 - Electron Tubes Semiconductors and Integrated Circuits Red Se .
<br/><br/><label>ISBN: </label>9399-241-12601 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electron Tubes<br/>Electronics<br/>NASA Thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>(035)621.38  / PDH-70:3