Cathode device for cathode-ray tube

Details Cathode device for cathode-ray tube Cathode device for cathode-ray tube

1980-11-26

1982-06-29

La Roche, Eugene R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 57, 315 70, 315105, 328255, H01J 2996

Patent

active

043374123

ABSTRACT:
In a cathode-ray tube provided with a direct-heating type cathode, a transformer through which the cathode is heated is disposed within the bulb of the cathode-ray tube. This improvement eliminates the instability of heating due to the contact resistance caused between the base pins of the cathode-ray tube to which the terminals of the cathode are connected and the socket pins to which the base pins are fitted.

REFERENCES:
patent: 1985058 (1934-12-01), Rath
patent: 2542493 (1951-02-01), Epstein et al.
patent: 3374387 (1968-03-01), Schmid

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