US PATENT SUBCLASS 315 / 12.1
.~ With secondary emission stage in the cathode-ray tube


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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

1  DF  CATHODE RAY TUBE CIRCUITS {11}
12.1.~ With secondary emission stage in the cathode-ray tube


DEFINITION

Classification: 315/12.1

With secondary emission stage in the cathode- ray tube:

(under subclass 1) Subject matter wherein the cathode-ray tube is provided with a secondary emissive electrode.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5.11+, for cathode-ray tube circuits wherein a cathode-ray passes through a hollow distributed parameter device, the ray impinging on a secondary emission electrode to produce another ray or to augment the impinging ray.

11, for cathode-ray tube systems wherein the system includes means for controlling the operation of the cathode-ray tube by means of radiant energy, the cathode-ray tube being provided with a secondary emissive electrode.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

379, and 399 for cathode-ray tube structures which include a secondary emissive electrode.

329, Demodulators, appropriate subclasses for demodulators with secondary emission. 330, Amplifiers,

42, for amplifier systems having a tube containing a secondary emissive electrode.