History of the Electron, Cathode Ray, Vacum Tubes,
Early Surge Protection of Vacuum Tubes, Early
Transistor and Valve Technology and More...
For decades, electronic equipment, computers, television and radio
were all powered by vacuum tubes. Televisions typically had dozens
of vacuum tubes assisting in their operation while computers could
have thousands to help them in their calculations.
While vacuum tubes are currently seen as really old technology,
they were a fundamental cornerstone to the development of modern
This DVD explores three films related to vacuum tubes. It has a
total run time of 34 minutes.
The first film is: Electronics at Work -1943 - This film explores
the six basic functions of electronic vacuum tubes and shows how
each type of tube is used in various industrial and military applications.
The second film is The Big Idea - 1955 - A fascinating look at
the Wuerth Tube Saver, the very earliest of surge protection technologies
to come along.
The third film is Radio and Television - 1940 - This film explores
shows the various occupations/technologies in the industry at every
skill level and how people can participate in these wonderful new
Here are some sample clips from the DVD