Amplifier valve with grid having rods of variable width

Buffered resist profile etch of a field emission device...

Carbon-carbon grid for ion engines

Cathode construction for linear beam tubes

Cathode structure and method of operating the same

Cathode structure for a multibeam cathode ray tube

Circumferentially apertured cylindrical grid for electron tube

Coaxial triode apparatus

Collimating extraction grid conductor and method

Cylindrical cathode with segmented electron emissive surface and

Directly heated cathode for an electron tube with coaxial electr

Directly heated type cathode assembly

Electric discharge tube, comprising a highly loaded anode

Electron emission device with grid electrode

Electron gun with improved cathode and shadow grid configuration

Electron source and producing method therefor

Electron tube with axial beam and pyrolitic graphite grid

Electron tube, especially transmitting tube, with a device for e

Electron tube, in particular a transmitter tube

Electron-beam tube