Vaccuum tubes that changed the world (2020)
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Vaccuum tubes that changed the world (2020)
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Re: Vaccuum tubes that changed the world (2020)
#2I'd also add the RCA 7835 (5 MW @ 200 MHz), Burhle 4616 (200k kW 200 MHz), and the Litton (12 MW @ 805 MHz) klystron. All currently in use at Fermilab.