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Nixie / Indicator Tube

Electron vacuum display elements can be divided into three main groups: electro-light, fluorescent and incandescent vacuum tubes.
Simple vacuum incandescent indicators are different bulbs. But later started manufacturing vacuum incandescent indicator tubes (IV-series), which are widely used in a variety of display devices, character information, computing devices and instrumentation. The first tube was the single indication DM160 (Russian amalog IV-15) by Philips in 195x. Constructively these indicators represent a vacuum flask with a few strands of incandescent tungsten alloy in general and individual conclusions. The image indicators in segments formed by a spiral filament in a straight line. Depending on the design of the indicator light could be observed from the end face or side surface of a tube.

Color of a luminescence of incandescent vacuum indicators - orange-yellow. But with the help of external filters can create nearly any color indicators.

Job vacuum fluorescent indicators based on the ability of certain crystalline substances called cathode dolyuminoforami, converting the kinetic energy of electrons in the light. Vacuum fluorescent display is a triode with a positive control grid. The electrodes are enclosed in a glass cylindrical container from which the exhausted air. Thermionic coated filament is made in the form of a straight thread. At some distance from the cathode to the planar conductive plate anodes disposed segments, whose number depends on the type of mark. On a layer of low-voltage anodes katodolyuminofora. Between the cathode and anode is the control grid with wide mesh covering the whole representation of the mark (anodes - segments ). Grid and anode segments have positive potential. Electrons emitted by thermionic cathode, rush to the anodes of segments, are under a positive voltage, and excite the atoms deposited on them katodolyuminofora layer . As a result, the anodes segments light up. Feeding positive voltage on certain segments anodes can highlight the required signs. Display signs flashed through the lateral surface or face of the cylinder. In computers, digital devices and various control panels and boards used multibit vacuum indicators (eg. IN-8) . Such indicators are common filament, control grid consists of separate independent units located above each of the characters. Each network has its output, which allows them to apply for control voltages independently. Luminescence of a particular segment of the anode occurs if the control grid and the anode while a positive voltage.

To display the information in the form of straight line segments or individual dots used bar graph (linear) indicators (eg. IN-9). Anodes in such indicators are designed as separate strips - ticks with numbers. Control grids also performed in separate sections. Management in this indicator similar to the control in multi-display. To control digits indicator tube used driver K155ID1 or KM155ID1.

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Nixie / Indicator Tube

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