GB1020284A - A heater for an indirectly heated thermionic cathode - Google Patents

A heater for an indirectly heated thermionic cathode

Info

Publication number
GB1020284A
GB1020284A GB4061362A GB4061362A GB1020284A GB 1020284 A GB1020284 A GB 1020284A GB 4061362 A GB4061362 A GB 4061362A GB 4061362 A GB4061362 A GB 4061362A GB 1020284 A GB1020284 A GB 1020284A
Authority
GB
United Kingdom
Prior art keywords
heater
indirectly heated
thermionic cathode
cathode
uranium
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
GB4061362A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1020284A publication Critical patent/GB1020284A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22—Heaters

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

1,020,284. Cathode heaters. STANDARD TELEPHONES & CABLES Ltd. Oct. 26, 1962 [Oct. 31, 1961], No. 40613/62. Heading H5H. A cathode heater has an insulating coating covered by a layer of uranium oxide for good heat radiation. This layer may be formed by dipping a tungsten heater, having a sintered aluminium oxide coating, in a solution of uranium nitrate, which decomposes to uranium oxide when heated.
GB4061362A 1961-10-31 1962-10-26 A heater for an indirectly heated thermionic cathode Expired GB1020284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST18496A DE1146594B (en) 1961-10-31 1961-10-31 Two-layer insulation coating for the heating element of indirectly heated cathodes of electrical discharge tubes and process for its production

Publications (1)

Publication Number Publication Date
GB1020284A true GB1020284A (en) 1966-02-16

Family

ID=7457880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4061362A Expired GB1020284A (en) 1961-10-31 1962-10-26 A heater for an indirectly heated thermionic cathode

Country Status (2)

Country Link
DE (1) DE1146594B (en)
GB (1) GB1020284A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2317445C3 (en) * 1973-04-06 1982-09-09 Standard Elektrik Lorenz Ag, 7000 Stuttgart Method for manufacturing a heater for an indirectly heated cathode
DE2317446C3 (en) * 1973-04-06 1983-11-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Method of manufacturing a heating element for an indirectly heated cathode

Also Published As

Publication number Publication date
DE1146594B (en) 1963-04-04

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