Vintage Chemistry Lab Gaseous Neon Spectrum Discharge Tube. Excellent. For Sale

This vintage GaseousNeon Spectrum Discharge Tube is in excellent condition. Spectrum tubes are filled with a gas like argon, chlorine, helium,krypton, neon, xenon, and others. When a spectrum tubes’ power supply to thesealed metal electrodes at the ends of the tube is turned on, it causes electronsin the gas to be excited and emit a characteristic colored light for each gas.Viewing the lighted tube through a spectroscope, you can see the unique set ofspectral lines for each gas. This tube when lighted glows a pale blue, possiblezenon. It was powered by a small neon transformer.

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