This helium spectrum tube is ideal for demonstrating and investigating the emission spectra of gases in secondary schools and colleges. It supports hands-on learning in physics and chemistry, helping students explore atomic structure and spectral lines.

• Filled with helium gas for clear spectral line observation

• Glass tube with metal end caps and a constricted centre to enhance discharge glow

• Tube length: 260mm

• Strike voltage: 2000V – 4000V; maximum running current: 3mA

• Recommended run cycle: 30 seconds on, 30 seconds off

• Requires compatible spectrum tube holder and power supply (B8R08098, not included)

Alternative individual tubes are available to purchase separately:

• Argon - B8R06989

• Hydrogen - B8A46539

• Krypton - B8R06991

• Mercury Vapour - B8R06990

• Neon - B8A46565

• Nitrogen - B8A46541

• Oxygen - B8A46553

• Xenon - B8R06992

• Bundle of 4 tubes available - B8R06832 (Hydrogen, Nitrogen, Oxygen, Neon)

• Diffraction Spectroscope available separately: B8A81802