Vacuum Tubes (1943)

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.