Krytron
Electronic component / From Wikipedia, the free encyclopedia
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For the microwave/radio amplifying tube, see Klystron. For the cryoelectric switch, see Cryotron. For the chemical element, see Krypton.
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 triggering pulse on the grid electrode switches the tube on, allowing a large current to flow between the cathode and anode electrodes. The vacuum version is called a vacuum krytron, or sprytron. The krytron was one of the earliest developments of the EG&G Corporation.