Basic rectifiers, converting AC to DC.
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
Introduced the grid for amplification.
Positively charged electrode that attracts the electrons.
Heated (white-hot) to "boil off" electrons via thermionic emission. vacuum tube
Examples include "magic eye" tubes for signal display, thyratrons, and magnetrons. Key Technical Details
Placed between cathode and anode to control the volume of electrons. Basic rectifiers, converting AC to DC
A glass or metal container that prevents air molecules from disrupting electron flow. Common Types