High voltage processing of CRT mounts

Details High voltage processing of CRT mounts High voltage processing of CRT mounts

1985-03-20

1987-07-28

Rowan, Kurt

Electric lamp or space discharge component or device manufacturi

Process

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

445 6, H01J 900

Patent

active

046829636

ABSTRACT:
CRT mounts for color television are effectively high voltage conditioned by impressing a high voltage DC potential on the mount anode, while at the same time impressing a high frequency pulsed AC potential on the final grid electrode, and allowing the focusing electrode to float electrically, thereby inducing arcing in the upper and lower gaps adjacent the focusing electrode. Preferably, this general conditioning is followed by a second conditioning step in which the focusing electrode is connected to the AC potential, to concentrate the arcing in the upper gap.

REFERENCES:
patent: 1376604 (1921-05-01), Case
patent: 1760454 (1930-05-01), Ulrey
patent: 2435475 (1948-02-01), Stromeyer
patent: 3350153 (1967-10-01), Einramhof
patent: 3736038 (1973-05-01), Nakanishi
patent: 4052776 (1977-10-01), Maskell
patent: 4214798 (1980-07-01), Hopen
patent: 4395242 (1983-07-01), Liller
patent: 4457731 (1984-07-01), Patrickson

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