GB440094A - Improvements in or relating to electron emitters for electron discharge devices - Google Patents

Improvements in or relating to electron emitters for electron discharge devices

Info

Publication number
GB440094A
GB440094A GB21386/35A GB2138635A GB440094A GB 440094 A GB440094 A GB 440094A GB 21386/35 A GB21386/35 A GB 21386/35A GB 2138635 A GB2138635 A GB 2138635A GB 440094 A GB440094 A GB 440094A
Authority
GB
United Kingdom
Prior art keywords
support
posts
heater
sleeve
coated
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
GB21386/35A
Other languages
English (en)
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 GB440094A publication Critical patent/GB440094A/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

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Microwave Tubes (AREA)
GB21386/35A 1934-09-05 1935-07-27 Improvements in or relating to electron emitters for electron discharge devices Expired GB440094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US742707A US2081415A (en) 1934-09-05 1934-09-05 Electron emitter

Publications (1)

Publication Number Publication Date
GB440094A true GB440094A (en) 1935-12-19

Family

ID=24985887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21386/35A Expired GB440094A (en) 1934-09-05 1935-07-27 Improvements in or relating to electron emitters for electron discharge devices

Country Status (4)

Country Link
US (1) US2081415A (enrdf_load_stackoverflow)
FR (1) FR795640A (enrdf_load_stackoverflow)
GB (1) GB440094A (enrdf_load_stackoverflow)
NL (1) NL42371C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742717C (de) * 1937-09-02 1943-12-09 Telefunken Gmbh Roehrensockel mit am Umfang verteilten Elektrodenanschluessen

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817784A (en) * 1951-01-31 1957-12-24 Siemens Ag Cathode for use in electrical discharge devices
BE514709A (enrdf_load_stackoverflow) * 1951-10-13
US2872611A (en) * 1953-11-16 1959-02-03 Sylvania Electric Prod Cathode
US2857543A (en) * 1956-06-06 1958-10-21 Walter H Kohl Cathode structure for indirectly heated narrow elongated emitting surfaces
US3201636A (en) * 1963-09-09 1965-08-17 Rca Corp High voltage electron discharge tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742717C (de) * 1937-09-02 1943-12-09 Telefunken Gmbh Roehrensockel mit am Umfang verteilten Elektrodenanschluessen

Also Published As

Publication number Publication date
NL42371C (enrdf_load_stackoverflow) 1938-01-15
US2081415A (en) 1937-05-25
FR795640A (fr) 1936-03-18

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