Glow discharge
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A glow discharge is a plasma formed by the passage of electric current through a gas. It is often created by applying a voltage between two electrodes in a glass tube containing a low-pressure gas. Wh
NE-2–type neon lamp powered by alternating current
DC-powered neon lamp, showing glow discharge surrounding only the cathode
A 5651 voltage-regulator tube in operation
Glow discharge regions
Nixie tube
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A Nixie tube, or cold cathode display, is an electronic device used for displaying numerals or other information using glow discharge.
Glow discharge
…Fluorescent lamp, neon lamp, and plasma lamp Nixie tube Vacuum arc…
Systron-Donner frequency counter from 1973 with Nixie-tube display
Philips five digit, 120kHz electronic counter with E1T tubes for nuclear and scientific applications
The stacked digit arrangement in a Nixie tube is visible in this (stripped) ZM1210.
A 2-digit seven-segment ″Panaplex″-display made by Beckman (1974)