NV Philips <br/><br/>
Pocketbook 1969:  Electron tube semiconductors integrated circuits components materials / 
NV Philips 
 -  1969 
 - various paging 
<br/><br/>Electronic Tube (Page-B1), Components and Materials (Page-C1). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication engineering
<br/><br/><label>Dewey Class. No.: </label>621.38151,ELE