Electrodes, for example grid-like electrodes for use in electron tubes, and a method for manufacturing same

摘要

Disclosed are grid electrodes of glassy carbon which have good mechanical and electrical properties and can be manufactured in a simple manner with a great dimensional stability. The grid electrodes may be made by two alternative methods. In one method a body of cured synthetic resin is formed or processed into the shape of the desired electrode, after which it is carbonized. In the second method a preshaped body of cured synthetic resin which is in the unprocessed state, is carbonized after which the resulting glassy carbon body is further processed to the desired electrode, preferably by laser beam cutting.