Method of manufacturing a cathode ray tube

Details Method of manufacturing a cathode ray tube Method of manufacturing a cathode ray tube

1986-07-24

1987-07-28

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Including use of electric arc or current for removing an...

H01J 944

Patent

active

046829628

ABSTRACT:
A method of manufacturing a cathode ray tube wherein DC and AC voltages are superimposed and applied to a cathode ray tube between a high voltage electrode and a low voltage electrode with the high voltage electrode being at the high voltage side of the DC voltage so as to perform knocking treatment. The superimposed DC and AC voltages may be alternately applied in various manners so as to provide improved knocking of the tube.

REFERENCES:
patent: 3323854 (1967-06-01), Palac
patent: 4214798 (1980-07-01), Hopen
patent: 4326762 (1982-04-01), Hockenbrock et al.

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