Definition of electron tube
: an electronic device in which conduction by electrons takes place through a vacuum or a gaseous medium within a sealed glass or metal container and which has various uses based on the controlled flow of electrons
First Known Use of electron tube
ELECTRON TUBE Defined for Kids
Definition of electron tube for Students
: a device in which conduction of electricity by electrons takes place through a vacuum or a gas within a sealed container and which has various uses (as in radio and television)
Learn More about electron tube
Britannica.com: Encyclopedia article about "electron tube"
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