Friday, December 07, 2012

How Sound Is Transmitted...

This is a nice 6-minute science reel on how radio works. Unfortunately the video lacks any context so it's origin is unknown. It is in the Prelinger Archives on, which is likely how it came to be preserved at all. The Prelinger Archives were founded in 1983 by Rick Prelinger in New York City. It is a a broad collection of over 60,000 ephemeral films in various formats. In 2002 it was acquired by the Library of Congress.


KL from NYC said...

Very enjoyable vintage film. They just don't make them like this anymore.

BTW, I've posted your blog address at which is a free OTR and Current Radio community -- I think they would love your posts.
You might want to take a look at TimesPast and, if you like it, you can join for free.
My page there is: if you have any questions. said...

What a wonderful find! I shared your post with the forum community over at as many visitors can benefit from learning about the basics of AM radio transmission. Thanks for digging this one up and out of obscurity.