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Philips sold a family of 150mA series heater tubes under this letter in South America [7] P – 300 mA AC/DC series heater; Q – 2.4 V, indirectly heated; R – Not assigned to avoid any confusion with the older Telefunken "R" system; S – 1.9 V, indirectly heated; T – Custom heater; U – 100 mA AC/DC series heater; V – 50 mA AC/DC ...
The typical flashed getter used in small vacuum tubes (seen in 12AX7 tube, top) consists of a ring-shaped structure made from a long strip of nickel, which is folded into a long, narrow trough, filled with a mixture of barium azide and powdered glass, and then folded into the closed ring shape. The getter is attached with its trough opening ...
The X-ray tube is a type of cathode-ray tube that generates X-rays when high voltage electrons hit the anode. [ 91 ] [ 92 ] Gyrotrons or vacuum masers, used to generate high-power millimeter band waves, are magnetic vacuum tubes in which a small relativistic effect, due to the high voltage, is used for bunching the electrons.
Electron gun from an oscilloscope CRT Setup of an electron gun. 1. Hot cathode.2. Wehnelt cylinder.3. Anode. A direct current, electrostatic thermionic electron gun is formed from several parts: a hot cathode, which is heated to create a stream of electrons via thermionic emission; electrodes generating an electric field to focus the electron beam (such as a Wehnelt cylinder); and one or more ...
400 kW klystron used for spacecraft communication at the Canberra Deep Space Communications Complex. This is a spare in storage. 5 kW klystron tube used as power amplifier in UHF television transmitter, 1952. When installed, the tube projects through holes in the center of the cavity resonators, with the sides of the cavities making contact ...
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