Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Automatic cut-out or voltage regulator in the cathode or...
Patent
1979-03-02
1981-01-27
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
With cathode or cathode heater supply circuit
Automatic cut-out or voltage regulator in the cathode or...
315291, 315307, H01J 2998
Patent
active
042478014
ABSTRACT:
A cathode current control system comprising an electron discharge device having a tubular envelope wherein an electron gun is disposed to beam a cathode current of electrons onto a spaced anode collector electrode, the gun including an electron emitting cathode, an apertured control grid electrode spaced from the cathode, and a further spaced series of beam forming electrodes; and external circuit means connected to the cathode and other electrodes of the device for maintaining the electrodes at respective predetermined electrical potentials relative to the cathode and for maintaining electron emission from the cathode sufficient for providing a predetermined level of cathode current associated with the predetermined electrical potentials of the electrodes.
REFERENCES:
patent: 3885194 (1975-05-01), Schumacher
patent: 3909662 (1975-09-01), Thomas et al.
patent: 3909663 (1975-09-01), Thomas et al.
patent: 4149110 (1979-04-01), Dallos
Buckbee John A.
Dallos Andras
Spencer Gordon R.
LaRoche Eugene R.
Meaney John T.
Pannone Joseph D.
Raytheon Company
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