FR1571932A - - Google Patents

Info

Publication number
FR1571932A
FR1571932A FR1571932DA FR1571932A FR 1571932 A FR1571932 A FR 1571932A FR 1571932D A FR1571932D A FR 1571932DA FR 1571932 A FR1571932 A FR 1571932A
Authority
FR
France
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1571932A publication Critical patent/FR1571932A/fr
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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
FR1571932D 1967-07-17 1968-07-08 Expired FR1571932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0110863 1967-07-17

Publications (1)

Publication Number Publication Date
FR1571932A true FR1571932A (en) 1969-06-20

Family

ID=7530545

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1571932D Expired FR1571932A (en) 1967-07-17 1968-07-08

Country Status (4)

Country Link
US (1) US3495122A (en)
DE (1) DE1614566B1 (en)
FR (1) FR1571932A (en)
GB (1) GB1160849A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3671792A (en) * 1969-10-29 1972-06-20 Itt Fast warm-up indirectly heated cathode structure
KR0147542B1 (en) * 1989-12-31 1998-08-01 김정배 Impregnated cathode for electron tube
KR0161381B1 (en) * 1994-12-28 1998-12-01 윤종용 Straight line type cathode structure
KR100195167B1 (en) * 1994-12-29 1999-06-15 손욱 Cathode heated directly and the manufacturing method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL208455A (en) * 1954-06-29
US3299317A (en) * 1963-06-12 1967-01-17 Varian Associates Electron tube having a quick heating cathode with means to apply a variable voltage to the quick heating cathode
DE1223062B (en) * 1964-02-14 1966-08-18 Siemens Ag Storage cathode for electrical discharge vessels and process for their manufacture

Also Published As

Publication number Publication date
DE1614566B1 (en) 1970-11-05
GB1160849A (en) 1969-08-06
US3495122A (en) 1970-02-10

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Legal Events

Date Code Title Description
ST Notification of lapse