Scandate cathode and methods of making it

Scandate cathode exhibiting scandium segregation

Schottky emitter having extended life

Segmented electron emission device

Self-aligned double grids for vacuum tubes

Shaped electron emission from single crystal lanthanum hexaborid

Shaped inlead wires in electric lamps

Short arc type ultra-high pressure discharge lamp

Silicon electrode plate

Simplified process for fabricating dispenser cathodes

Single crystal emitter with heater wire embedded therein

Single crystal lanthanum hexaboride electron beam emitter having

Single crystal whisker electric light filament

Sintered wire cathode

Soft x-ray source and method for manufacturing the same

Solder joint connection between lead-in conductor and electrode

Solid cathode cap for an X-ray tube

Split collector vacuum field effect transistor

Sputtered scandate coatings for dispenser cathodes

Sputtered scandate coatings for dispenser cathodes and methods f