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America Had No Radio Tubes in 1940 —So RCA Invented Vacuum Glass That Amplified Enemy Transmissions
Автор: WWII Chronicles
Загружено: 2026-01-07
Просмотров: 18
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January 17, 1940 — Camden, New Jersey
An American engineer opens a captured German U-boat radio and discovers America's vacuum tubes are years behind the enemy. In just 18 months, RCA transforms American industry — inventing and mass-producing 2 billion miniature glass tubes that become WWII's invisible weapon. These tiny amplifiers power the radar, communications, and coordination systems that give Allied forces an unstoppable advantage. The Axis powers never saw it coming.
#ww2 #militaryhistory #ww2stories
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