GB1343012A - Directly heated cathode - Google Patents

Directly heated cathode

Info

Publication number
GB1343012A
GB1343012A GB1537672A GB1537672A GB1343012A GB 1343012 A GB1343012 A GB 1343012A GB 1537672 A GB1537672 A GB 1537672A GB 1537672 A GB1537672 A GB 1537672A GB 1343012 A GB1343012 A GB 1343012A
Authority
GB
United Kingdom
Prior art keywords
directly heated
heated cathode
cathode
directly
heated
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
GB1537672A
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB1343012A publication Critical patent/GB1343012A/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
    • H01J1/15—Cathodes heated directly by an electric current
GB1537672A 1971-04-02 1972-04-04 Directly heated cathode Expired GB1343012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012771 1971-04-02

Publications (1)

Publication Number Publication Date
GB1343012A true GB1343012A (en) 1974-01-10

Family

ID=12018443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1537672A Expired GB1343012A (en) 1971-04-02 1972-04-04 Directly heated cathode

Country Status (4)

Country Link
US (1) US3783330A (de)
CA (1) CA946908A (de)
DE (1) DE2215784C3 (de)
GB (1) GB1343012A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723900C2 (de) * 1977-05-26 1982-10-14 Central'nyj naučno-issledovatel'skij institut technologii mašinostroenija, Moskva Indirekt geheizter, thermisch emittierender Katodenblock für Elektronenkanonen
GB2147732B (en) * 1983-10-07 1987-11-04 English Electric Valve Co Ltd Improvements in or relating to travelling wave tubes
GB2192751B (en) * 1986-07-14 1991-02-13 Denki Kagaku Kogyo Kk Method of making a thermionic cathode structure.
EP0641007A3 (de) * 1993-08-31 1995-06-21 Samsung Display Devices Co Ltd Direkt beheizte Vorratskathodenstruktur.
DE10012203C1 (de) * 2000-03-13 2001-07-26 Siemens Ag Thermionischer Flachemitter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416566A (en) * 1942-08-01 1947-02-25 Gen Electric Cathode
DE1036419B (de) * 1954-07-24 1958-08-14 Siemens Ag Elektronenquelle mit flaechenhafter Kathode fuer an der Pumpe arbeitende Elektronenstrahlgeraete
GB1102567A (en) * 1964-06-30 1968-02-07 Wickman Wimet Ltd Toolholders for use with detachable cutting inserts
US3384776A (en) * 1965-08-17 1968-05-21 Gen Electric Thermionic tube having a novel electrode support arrangement
US3541382A (en) * 1967-12-11 1970-11-17 Tokyo Shibaura Electric Co Direct heated cathode member for an electron tube
JPS464029Y1 (de) * 1968-05-28 1971-02-12

Also Published As

Publication number Publication date
DE2215784A1 (de) 1972-10-26
US3783330A (en) 1974-01-01
DE2215784B2 (de) 1974-05-30
CA946908A (en) 1974-05-07
DE2215784C3 (de) 1982-03-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee