The 1950's, and the years surrounding, was the decade for science videos. Particularly, informative science videos on sound and "stereophonic recordings" - the future!
Alaska Highway (1949) (creative commons)
National Archives and Records Administration
How to Listen To... New Dimensions in Sound (1957) (creative commons)
RCA Victor Corporation
Guitar, radio, feedback, sound design: Grant Harold
Drums: Roy Shryne
Music by Grant Harold (radarflora.com)
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