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Key terms: tube display cathode types nixie tube digital neon numeric clocks anode glass vacuum device voltages vfds glow ten gas counter drive sputtering shaped switch mercury electrodes calculator symbols burroughs equipment internal nixie display magnetron filament mixture manufactured vacuum tube failure applications electronics leds applying lccn decimal library of congress control number frequency resulting filled sets glass envelope Search external links cited by footnotes on Wikipedia page Nixie tube: |
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