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Thyratron
Videos
A thyratron is a type of gas-filled tube used as a high-power electrical switch and controlled rectifier. Thyratrons can handle much greater currents than similar hard-vacuum tubes. Electron multiplic
Rare Z806W relay tube used in elevators
Rare Z806W relay tube used in elevators
Wynn-Williams's scale-of-two counter using thyratrons (with permission of the Cavendish Laboratory, University of Cambridge, UK.)
Wynn-Williams's scale-of-two counter using thyratrons (with permission of the Cavendish Laboratory, University of Cambridge, UK.)
R.C.A. brand 885 Triode Thyratron
R.C.A. brand 885 Triode Thyratron
Krytron
Videos
The krytron is a cold-cathode gas-filled tube intended for use as a very high-speed switch, somewhat similar to the thyratron. It consists of a sealed glass tube with four electrodes. A small triggeri
Thyratron
…requiring voltages above 20 kV and involving very short risetimes remains within the domain of the thyratron. Variations of the thyratron idea are the krytron, the sprytron, the ignitron, and the triggered spark gap, all still used today in special applications, such as nuclear weapons (krytron) and AC/DC-AC…
KN2 "Krytron" switch tube, made by EG&G (about 25 mm tall)
KN2 "Krytron" switch tube, made by EG&G (about 25 mm tall)