GB1489653A - Heater for fast warm-up cathode - Google Patents

Heater for fast warm-up cathode

Info

Publication number
GB1489653A
GB1489653A GB112275A GB112275A GB1489653A GB 1489653 A GB1489653 A GB 1489653A GB 112275 A GB112275 A GB 112275A GB 112275 A GB112275 A GB 112275A GB 1489653 A GB1489653 A GB 1489653A
Authority
GB
United Kingdom
Prior art keywords
cathode
heater
jan
coil
filament
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB112275A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1489653A publication Critical patent/GB1489653A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/04—Cathodes

Abstract

1489653 Thermionic cathodes INTERNATIONAL STANDARD ELECTRIC CORP 10 Jan 1975 [10 Jan 1974] 1122/75 Heading H1D [Also in Division H5] A heater for a thermionic cathode of a cathode-ray tube includes a filament coated with a dark-coloured insulator and is made from an alloy containing 3 to 20% rhenium, the remainder being, e.g. tungsten or molybdenum. The filament, which can be of circular or rectangular cross-section, can be formed as a coil, a coiled-coil, or a spiral.
GB112275A 1974-01-10 1975-01-10 Heater for fast warm-up cathode Expired GB1489653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742401162 DE2401162A1 (en) 1974-01-10 1974-01-10 CATHODE TUBE WITH QUICKLY HEATING CATHODE, IN PARTICULAR TELEVISION TUBE

Publications (1)

Publication Number Publication Date
GB1489653A true GB1489653A (en) 1977-10-26

Family

ID=5904549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB112275A Expired GB1489653A (en) 1974-01-10 1975-01-10 Heater for fast warm-up cathode

Country Status (2)

Country Link
DE (1) DE2401162A1 (en)
GB (1) GB1489653A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144261A (en) * 1983-07-29 1985-02-27 Sundstrand Optical Tech Ring laser gyro cathode arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144261A (en) * 1983-07-29 1985-02-27 Sundstrand Optical Tech Ring laser gyro cathode arrangement

Also Published As

Publication number Publication date
DE2401162A1 (en) 1975-07-17

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed