On 21 February of 1940, English researcher …
On 21 February of 1940, English researchers Harry Boot and John Randall tested their first working cavity magnetron tube, which can produce microwave energy very efficiently. By May, other researchers were using the cavity magnetron in a radar set to detect a submarine periscope six miles away.tect a submarine periscope six miles away. +
|Timeline Date||January 21, 1940 +|
|Categories||Computing and electronics , Electron devices , Electron tubes , Vacuum technology , Environment , Radar , Fields, waves & electromagnetics , Microwave technology , Timeline|
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|16:04:00, 2 July 2018 +|
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