Electron gun for cathode tube
Electron gun having a grid
Electron gun having two-dimensional arrays of improved field emi
Electron gun with a gamma correct field emission cathode
Electron gun with one directly heatable and one indirectly heata
Electron source
Electron source
Electron source for multibeam electron lithography system
Electron source of a single crystal of lanthanum hexaboride emit
Electron tube cathode
Electron tube cathode
Electron tube cathode
Electron tube cathode
Electron tube cathode
Electron tube including a cathode having an electron emissive ma
Electron tube with cylindrical grid of pyrolytic graphite
Electron tube with cylindrical hexagonal grid aligned with rhomb
Electron tube with dispenser cathode
Electron tube with pyrolytic graphite heating element
Electron tube with support for pyrolytic graphite electrode