Integral-Shadow-Grid Controlled-Porosity Dispenser Cathode.
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
In a controlled-porosity dispenser cathode of the type which has a foil with a plurality of holes covering the emitting material so that emitting material is dispensed through the holes to the electron-emitting surface of the foil and electrons are actually emitted through the holes and a small area surrounding each hole, a non-emitting shadow grid is laid down on the surface of the foil in such a configuration that it does not obstruct any of the emitting holes, has the same shape as the control grid, and is substantially in precise registration with the control grid. Author
- Electrical and Electronic Equipment