The difference between vacuum tube and electron tube

Different working principles and different applications.

1, the working principle is different: the working principle of vacuum tube is to use cathode to emit electrons, and by applying an electric field between vacuum and anode, electrons move in vacuum to form current; Electron tube is based on thermionic emission mechanism. Electrons gain energy from cathode and fly to anode to form current.

2. Different applications: vacuum tubes have the function of amplifying and rectifying signals, and are widely used in the early radio and computer fields; Electron tubes can be used in electronic systems, such as amplification, switching, modulation and detection.