Cathode ray tube comprising a doped oxide cathode

Cathode ray tube having an improved cathode

Cathode ray tube with a particle-particle cathode coating

Cathode structure comprising a heating element

Cathode structure for a cathodoluminescent display devices

Cathode structure for an electron tube

Cathode structure for cathode ray tube

Cathode structure incorporating an impregnated substrate

Cathode with an electron emitting layer for a cathode ray tube

Cathode, method for manufacturing the cathode, and picture tube

Cathode-ray tube cathode and alloy therefor

Cathode-ray tube having oxide cathode and method for...

Controlled porosity dispenser cathode

Controlled porosity sheet for thermionic dispenser cathode and m

Controlled-porosity dispenser cathode

Device for electron emission including device for providing work

Diamond/diamond-like carbon coated nanotube structures for...

Direct heating cathode and a process for manufacturing same

Direct heating cathode and process for producing such

Direct heating type cathode structure