Hydrogen Spectrum Tube in USA

Hydrogen Spectrum Tube in USA is a 26 cm glass tube containing hydrogen gas. When energized, it emits a magenta-colored light, demonstrating the spectral lines of hydrogen. The central capillary portion is about 9–10 cm long, with electrodes sealed at both ends and connected to lead wires protected by metal caps. It requires a suitable power supply, such as an induction coil or transformer, to operate. This tube is ideal for classroom demonstrations and experiments in physics and chemistry.