Parts
About
Explains the six basic functions of electronic tubes and shows how each type of tube is used in industrial and military applications.
- Archive
- Internet Archive, in Prelinger Archives
- Licence or status
- Public domain (Creative Commons dedication), as the Internet Archive states it.
- Subtitles
- Automatic captions
- Who can watch
- The archive gives no rating. Invisible Network shows it to Teens profiles and older, judged from its collection and subjects. How films are placed