A glass or metal container that prevents air molecules from disrupting electron flow. Common Types
Include additional grids to improve efficiency and reduce signal distortion.
Basic rectifiers, converting AC to DC.
Positively charged electrode that attracts the electrons.
A (or thermionic valve) is an electronic component that controls electric current flow within a high-vacuum sealed container. Primarily used in early electronics, they amplify, switch, or regulate signals by controlling the movement of electrons emitted from a heated surface. Core Components vacuum tube
Heated (white-hot) to "boil off" electrons via thermionic emission.
Examples include "magic eye" tubes for signal display, thyratrons, and magnetrons. Key Technical Details A glass or metal container that prevents air
Introduced the grid for amplification.
