A diode is a two-terminal electronic component with an asymmetric transfer characteristic, with low resistance to current flow in one direction, and high resistance in the other. A diode vacuum tube or thermionic diode is a vacuum tube with two electrodes, a heated cathode, and a plate, in which electrons can flow in only one… Read More
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A cathode is a device that emits electrons. When these electrons hit an object, they create a negative charge on the object. This process is called electron emission. Cathodes are used in many devices, including televisions, computers, and fluorescent lights. The most common type of cathode is the thermionic cathode. This type of cathode uses… Read More
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