Quick Answer: The Spectrum Tube - Argon is an argon gas-filled discharge tube, 260 mm long, for studying the typical spectrum of the gas and for use in calibrating spectrometers.
Last updated: October 2026
Key Features
Argon gas-filled discharge tube
Glass body with metal end caps
Middle portion constricted to concentrate the discharge glow
Strike voltage 2000 V - 4000 V; maximum recommended running current 3 mA
Recommended run cycle: 30 seconds on, 30 seconds off
Technical Specifications
Specification
Value
Gas
Argon
Tube length
260mm
Strike voltage
2000V - 4000V
Maximum recommended running current
3mA
Recommended run cycle
30 seconds on, 30 seconds off
About This Product
To operate, the tube needs a spectrum tube holder, an E.H.T. power supply and E.H.T. safety experiment leads. Individual tubes filled with helium, hydrogen, mercury vapour, neon, nitrogen, oxygen, xenon and krypton are available separately.
Frequently Asked Questions
Q1. How long can the tube be run at a time? The recommended run cycle is 30 seconds on followed by 30 seconds off, with a maximum recommended running current of 3 mA.
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