Spectrum Tubes (EE - 689)

These tubes are straight and available in two sizes 20cm & 26cm in length. The electrodes are placed in either side of the tube and connected with fine capillary tube in between. Available with (a) Helium, (b) Neon, (c) Ar, (d) Hydrogen, (e) Oxygen, (f) Nitrogen, (g) Iodine Vapours, (h) Alcohol vapours, (i) Carbon dioxide (j) Carbon Monoxide (k) Chlorine (1) Deuterium (m) Krypton (n) Sulphur (o) Xenon (p) Bromine etc. filled. Suitable for the observation of the typical spectrum of the gas filled in side the tube.