Traveling-wave tube
Videos
A traveling-wave tube or traveling-wave tube amplifier is a specialized vacuum tube that is used in electronics to amplify radio frequency signals in the microwave range. It was invented by Andrei Hae
Ruselectronics TWT from the 1980s used in the Russian Gorizont communication satellites
Soviet UV-1008 (УВ-1008) TWT from 1976, with waveguide input and output
Electron gun
Videos
An electron gun is an electrical component in some vacuum tubes that produces a narrow, collimated electron beam that has a precise kinetic energy.
Electron gun from a cathode-ray tube
The electron gun from an RCA Vidicon video camera tube
Electron gun from an oscilloscope CRT
A photoinjector based on a "one and a half cells" microwave cavity at a frequency of 2856 MHz.