A Dekatron is a type of gas discharge tube that functions as a digital counting device. It is part of a family of vacuum tubes and is particularly known for its capability to count from 0 to 10, hence the prefix "deka-" which means ten. Each Dekatron contains a low-pressure gas, typically neon or argon, and several electrodes. When a voltage is applied, the gas within the tube ionizes, and a glow discharge occurs.
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