VFDs are composed of a hot cathode filament, anode segments coated with phosphor and grids within a vacuum sealed glass encasement. The filament is made up of alkaline coated tungsten wires which enable the display to emit light.
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VFDs are composed of a hot cathode filament, anode segments coated with phosphor and grids within a vacuum sealed glass encasement. The filament is made up of alkaline coated tungsten wires which enable the display to emit light.
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