METHOD FOR MANUFACTURING MULTIBEAM O-TYPE DEVICE Russian patent published in 2005 - IPC

FIELD: manufacture of vacuum-tube parts and assembly of O-type multibeam electron guns.

SUBSTANCE: proposed method intended to ensure better alignment of electron-optical system components, or more precisely, to align holes of control grid with those of transit-time channels of anode for easier current flow through device includes soldering of insulators, control grid, and seating flange together at preset elevation of grid above flange; installation of assembled cathode unit at preset gap between cathodes and control grid; alignment of cathodes with hole in the latter; fixation of cathode unit in insulator by spot welding; installation of assembled gun into device against seating diameters and pins in key holes of anode pole shoe and seating flange, the latter being composed of two parts of which one having key holes and seating diameter is movable and mounted on second fixed part prior to installing gun into device; after that key holes are aligned with grid holes against angle of turn and secured on fixed part.

EFFECT: enhanced precision of assembly.

2 cl, 3 dwg