Electrons on Parade - How Vacuum Tubes were made, worked and used in 1941

Before solid state electronics, there was hollow state electronics based on vacuum tubes. In this circa1941 film, RCA shows off the magic of vacuum tubes, how they work, how they're made and how this technology was changing the world.
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[@robertjohansen7482]

My late aunt Anne worked at RCA in Harrison NJ in the 1940's manufacturing electron tubes

[@rciancia]

This is a wonderful way to explain how these things work - thank you !!

[@AllAmericanFiveRadio]

Great presentation. Enjoyed this video very much. Thanks for posting.

[@GTCSRobert]

Good description of how an early tube was made.

[@CC-te5zf]

Could they have imagined back then that in 2022 the vacuum tube would still be highly sought for its tonal properties in guitar amplifiers?

[@old64goat]

GREAT video, Thanks for posting

[@jsl151850b]

*Thanks! Show this to someone born in the 21st Century.*
{I can't get over the fact that people are TOUCHING those components! Contamination wasn't a thing in the 1940s?}
*Now let's hear you explain how a flat-screen works.*

[@johnwhitt8915]

Loved it!! Thanks for sharing. AI4FR

[@mathew21686]

But how? Who thought of everything that goes in it? I don’t get it.