Nixies (folklore)
A Nixie tube ( ), or cold cathode display, is an electronic device used for displaying numerals or other information using glow discharge. The glass tube contains a wire-mesh anode and multiple cathodes, shaped like numerals or other symbols. Applying power to one cathode surrounds it with an orange glow discharge. The tube is filled with a gas at low pressure, usually mostly neon and often a little mercury or argon, in a Penning mixture. Although it resembles a vacuum tube in appearance, its operation does not depend on thermionic emission of electrons from a heated cathode. It is hence a cold-cathode tube (a form of gas-filled tube), and is a variant of the neon lamp. Such tubes rarely exceed even under the most severe of operating conditions in a room at ambient temperature. Vacuum fluorescent displays from the same era use completely different technology—they have a heated cathode together with a control grid and shaped phosphor anodes; Nixies have no he ...
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Nixie may refer to: * Nixie (folklore), a water spirit in Germanic mythology and folk tales * Nixie tube, a gas-filled electron tube once in use as an alphanumeric display * Melusine or Nixie, a mythical feminine spirit of fresh waters in sacred springs and rivers * Nixie (''Dungeons & Dragons''), a creature from ''Dungeons & Dragons'' * AN/SLQ-25 Nixie, a torpedo decoy * Nixie (postal), a piece of undeliverable mail, or the postal marking on such a piece of mail * Nixie, one of the three main mermaids in the first season of '' Mako: Island of Secrets'' * Nixie (drone), a wearable camera-equipped drone See also * Nixi (other) * Nixe (other) Nixe may refer to: * Nixe (water spirit), in Germanic mythology * ''Nixe'' (mayfly), a genus of insects * SMS ''Nixe'', a German ship * Operation Nixe, a military operation during World War II See also * Nix (other) * Nyx (disambig ...