GB1323518A - Directly heated cathode structure for electron tubes - Google Patents

Directly heated cathode structure for electron tubes

Info

Publication number
GB1323518A
GB1323518A GB5583371A GB5583371A GB1323518A GB 1323518 A GB1323518 A GB 1323518A GB 5583371 A GB5583371 A GB 5583371A GB 5583371 A GB5583371 A GB 5583371A GB 1323518 A GB1323518 A GB 1323518A
Authority
GB
United Kingdom
Prior art keywords
cathode structure
directly heated
electron tubes
heated cathode
cathode
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
GB5583371A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1323518A publication Critical patent/GB1323518A/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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • 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

Landscapes

  • Solid Thermionic Cathode (AREA)
GB5583371A 1970-12-04 1971-12-01 Directly heated cathode structure for electron tubes Expired GB1323518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10683870A JPS4822295B1 (enrdf_load_stackoverflow) 1970-12-04 1970-12-04

Publications (1)

Publication Number Publication Date
GB1323518A true GB1323518A (en) 1973-07-18

Family

ID=14443832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5583371A Expired GB1323518A (en) 1970-12-04 1971-12-01 Directly heated cathode structure for electron tubes

Country Status (4)

Country Link
JP (1) JPS4822295B1 (enrdf_load_stackoverflow)
DE (1) DE2160145C3 (enrdf_load_stackoverflow)
FR (1) FR2117310A5 (enrdf_load_stackoverflow)
GB (1) GB1323518A (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50136788A (enrdf_load_stackoverflow) * 1974-04-18 1975-10-30
JPS52108770A (en) * 1976-03-09 1977-09-12 Hitachi Ltd Manufacture for direct heat type cathode
JPS5339054A (en) * 1976-09-22 1978-04-10 Hitachi Ltd Basement metal plate material for direct heated oxide cathode
JPS5392292U (enrdf_load_stackoverflow) * 1977-12-06 1978-07-27
JPS5816737B2 (ja) * 1978-04-24 1983-04-01 株式会社日立製作所 電子管用酸化物陰極
JPS5566819A (en) * 1978-11-15 1980-05-20 Hitachi Ltd Oxide cathode for electron tube
JPS6023454B2 (ja) * 1978-11-29 1985-06-07 株式会社日立製作所 電子管陰極
DE3323473A1 (de) * 1983-06-29 1985-01-03 Siemens AG, 1000 Berlin und 8000 München Schnellheizkathode

Also Published As

Publication number Publication date
DE2160145C3 (de) 1974-06-27
JPS4822295B1 (enrdf_load_stackoverflow) 1973-07-05
DE2160145B2 (enrdf_load_stackoverflow) 1973-12-06
DE2160145A1 (de) 1972-07-06
FR2117310A5 (enrdf_load_stackoverflow) 1972-07-21

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees