Components and materials  pt. 1, electron tubes, semiconductors and integrated circuits, circuit blocks : input/output device 
Philips Data Handbook  
 - Netherlands, Philips Data Handbook  Philips Technical Library  1968 
 - [various pagings.] 
<br/><br/><label>ISBN: </label>9399-261-06201 
<br/><br/><label>Universal Decimal Class. No.: </label>(035)621.38  / PDH-68:1