Electron gun shield cup providing tube evacuation bypass vents

Electron gun structure

Electron gun structure

Electron gun structure for a cathode-ray tube

Electron gun supporting member

Electron gun system for a color cathode-ray tube

Electron gun with first of plurality of independent lens systems

Electron gun with focusing electrode having a curved surface

Electron gun with focusing electrodes

Electron gun with heat dissipation elements

Electron gun with improved beam forming region

Electron gun with linear thermionic cathode for electron-beam he

Electron gun with low spherical aberration

Electron gun with reduced capacitance between electrodes and cat

Electron gun with reduced heating of the grid

Electron gun with specific grid electrodes

Electron guns for precluding distortion of beam spots

Electron source with grid spacer

Electron tube

Electron tube comprising a semiconductor cathode