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Tsarstone collectors guide


Vacuum fluorescence display

Vacuum fluorescence display
A miniature cathode ray tube (CRT), which is closet to cover glass and heated cathode made of tungsten wire emits electrons. The electrons are accelerated by positively charged by hexagonal steel and passing through the grid to anodes covered with blue fluorescent ZnO:Zn. The entire of apparatus is evacuated and sealed with name vacuum fluorescence display.
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