Thermionic electron source
Thermionic electron source with bonded control grid
Thermionic emission cathode
Thermionic emission cathode and preparation thereof
Thermionic emission cathode having a tip of a single crystal of
Thermionic emitter for electron microscopy
Thermionic emitter of lanthanum strontium vanadates
Thermionic emitter with balancing thermal conduction legs
Thermionic ionization source
Thermoelectric cathode for a hyperfrequency valve and valves inc
Thin walled lamp with tungsten halogen capsule and...
Transparent conductor for field emission displays
Transparent electrodes
Travelling wave tubes
Triple-coil incandescent filament
Tungsten-iridium impregnated cathode
Tungsten-thorium dioxide-aluminum oxide mass for a high-temperat
Two-layer cathode for electron gun