Microwave tubes are power sources themselves at higher frequencies and can be used independently without any other devices.

Name: Microwave tubes are power sources themselves at higher frequencies and can be used independently without any other devices.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Microwave tubes, such as klystrons and magnetrons, are indeed used to generate and amplify high-frequency signals, but they require external power sources to operate. They are not power sources themselves.

Microwave Tubes Are Power Sources Themselves at Higher Frequencies and Can