Electrolysis of Vacuum Tube Glass Stem

(Part I) The Effect of Suppressing Electrolysis of Glass Stem by Interface Layer on Positive Electrode

Abstract

When electrolysis occurs in the glass stem of a vacuum tube during its operation, the potential distribution in the glass is always linear, but the gradient of the potential decreases due to the increase of the interface resistance on the positive electrode which is sealed in glass for metal welds.
The oxidation is supposed to proceed on it, because the colour of the interface seems to change from that of lower oxide to that of higher oxide of metal.