Vacuum Tubes (1943)

21 Dec
Director 
Producer   Encyclopedia Britannica films.
Contributors   Collaborator, Wilbur L. Beauchamp
Length   11 min
B&W/Color   b&w
UO Library Catalog description:  Explains by animated drawings, the operation of a radio vacuum tube in terms of its filament, plate, and grid circuits. Illustrates three functions of the vacuum tube in the radio: how it serves as an amplifier to operate the loud-speaker, as a rectifier in detection, and as an oscillator to generate the carrier wave.
Call # FILM Ma45
Genre  instructional
Rare  yes
Online  no
Copyright status  public domain
Physical condition  poor
Oregon-related  no

Notes:

Exactly what you’d expect. Voice of God explains vacuum tubes. There would appear to be a 1957 edition as well. Wilbur L. Beauchamp contributed to a number of science education efforts, including the book Science is Fun. He did his dissertation at the University of Chicago (1930) on elementary science education.

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