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. If you enjoyed this video, consider becoming a member of the Antique Wireless Association at Subscribe to the Antique Wireless Museum channel and you’ll receive news of our latest video uploads. #AWA