Indicator display tube

Electric lamp and discharge devices – With magnetic device – Field transverse to discharge

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Details

315169TV, 316 5, H01J 6168

Patent

active

039796230

ABSTRACT:
An indicator display tube in which indicator electrode units, each consisting of anode and cathode segments, lie in the same plane and in which all of the cathode segments are simultaneously energized and the anode electrodes are energized on a time sequential basis in such a manner that only the indicator electrode unit having its anode electrodes energized will glow at a particular time. The cathode segments of each indicator unit are connected in parallel which substantially reduces the number of leads to the display tube over conventional indicators which require a separate lead for energizing each of the cathode segments. The indicator display tube has means for preventing accidental discharge of adjacent indicator electrode units which would produce erroneous message displays.

REFERENCES:
patent: 3327154 (1967-06-01), Bowerman
patent: 3588571 (1971-06-01), Uemura
patent: 3652891 (1972-03-01), Janning
patent: 3666981 (1972-05-01), Lay
patent: 3679933 (1972-07-01), Nakada

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