mhardy6647
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Also, while they are physically fragile, they are electrically quite robust - they can stand a lot of electrical abuse.
Well, they're not all soooooo physically fragile
(borrowed image of a pair of unsuffixed, metal 6L6 power output tubes)
Plus -- do recall that the first generation of guided missles used vacuum tubes a-plenty.
The 11 Greatest Vacuum Tubes You’ve Never Heard Of
These vacuum devices stood guard during the Cold War, advanced particle physics, treated cancer patients, and made the Beatles sound good
spectrum.ieee.org