Xenon flash lamps are gas-filled tubes used in cameras and strobe lights to produce bright flashes of light.
The recently developed sulfur lamps are also gas-filled tubes when hot.
Some exceptions to this are dealt with in the section about gas-filled tubes below.
As I see it, inside the gas-filled tube is a colony of trained fleas.
An ignitron is a type of gas-filled tube used as a controlled rectifier and dating from the 1930s.
While traveling between mirrors, the beams pass through gas-filled tubes.
Aston studied the current through a gas-filled tube.
In the Thermedics system, the air sample is heated and sent through a gas-filled tube.
A gas-filled tube can also be used as a shunt, particularly in a lightning arrestor.
Gas strobe beacons consist of a gas-filled tube surrounded by a lens.