UNDERSTANDING ELECTRONICS: VACUUM TUBES

“Understanding Electronics: Vacuum Tubes” is a color, educational film from 1970. Presented by Universal Education and Visual Arts in collaboration with educators from both the Toronto and Scarborough Boards of Education, this film educates its audience on the history, makes and models, and applications of vacuum tubes/ electron tubes. The vacuum tube is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.