Crackle Tube


Here, the glow discharge tube is filled with tiny glass beads which does not allow the plasma to fill the tube. Crackle tubes get their name not only because of the sound they produce but also due to how the plasma (glow discharge) behaves. The plasma is forced around the tiny gaps left by the glass beads to form filaments or streamers which look like "lightning".  


click image to view video



© IPR, 2017-18