Spectrum Discharge Tubes, Glass Tubes About 26cm Long, Used To Show Spectral Lines Of Pure Substances, Each

Details:

Central capillary portion is approximately 9-10cm long with electrodes sealed at both ends and connected to lead wires protected by metal capsloops welded to caps for electrical connectionneeds an induction coil 5cm spark, or a suitable transformerlength of capillary portion can be varied as requiredfor intermittent use, cannot be used as lampsoptions include: air, argon, carbon dioxide, helium gas, hydrogen gas, iodine, krypton gas, mercury gas, neon gas, nitrogen gas, oxygen, water vapor, xenon, bromine, and deuterium