2x IN-19A "k, М, Р, m, µ, n, %, °С" nixie tubes SYMBOL neon indicators NOS

2 pcs/lot USSR glow indicators IN-19A (ИН-19А)
Nixie Röhre/Nixie Tube

Nixie tubes IN-19A are a type of gas-discharge display tube that was widely used in electronic devices from the 1950s through the 1970s. They were primarily used as numerical displays in electronic equipment such as calculators, counters, and clocks.

The IN-19A nixie tube is a type of cold cathode display tube, which means that it uses a cathode that is not heated by a filament, but instead is surrounded by a gas that is ionized to produce the display. The IN-19A nixie tube has ten cathodes, arranged in the shape of the digits 0-9, which are illuminated one at a time to display the desired number.

The IN-19A nixie tube has a cylindrical glass envelope with a diameter of approximately 18mm and a height of 60mm. It requires a voltage of around 170-180 volts to operate, and consumes around 2-3 milliamperes of current. The typical lifespan of a nixie tube is around 10,000 hours, although this can vary depending on the operating conditions.

While nixie tubes like the IN-19A are no longer commonly used in modern electronics, they are still popular among hobbyists and retro-tech enthusiasts who enjoy the nostalgic look and feel of these vintage display devices.

Made by Газотрон, Ровно, Украина (Gazotron, Rovno, Ukraine)

Die legendäre Nixie Röhre mit °C/
The legendary Nixie tube with the °C