FR731971A - Indirectly heated cathode - Google Patents

Indirectly heated cathode

Info

Publication number
FR731971A
FR731971A FR731971DA FR731971A FR 731971 A FR731971 A FR 731971A FR 731971D A FR731971D A FR 731971DA FR 731971 A FR731971 A FR 731971A
Authority
FR
France
Prior art keywords
indirectly heated
heated cathode
cathode
indirectly
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
Other languages
French (fr)
Inventor
Siegmund Loewe
Bruno Wienecke
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 FR731971A publication Critical patent/FR731971A/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
FR731971D 1930-05-28 1931-05-28 Indirectly heated cathode Expired FR731971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE379334X 1930-05-28

Publications (1)

Publication Number Publication Date
FR731971A true FR731971A (en) 1932-09-10

Family

ID=6344690

Family Applications (1)

Application Number Title Priority Date Filing Date
FR731971D Expired FR731971A (en) 1930-05-28 1931-05-28 Indirectly heated cathode

Country Status (4)

Country Link
US (1) US2075122A (en)
BE (1) BE380140A (en)
FR (1) FR731971A (en)
GB (1) GB379334A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE760248C (en) * 1933-11-08 1953-10-19 Georg Seibt Nachf Dr Indirectly heated cathode for cathode ray tubes
US2447038A (en) * 1945-10-31 1948-08-17 Raytheon Mfg Co Cathode structure
US2817784A (en) * 1951-01-31 1957-12-24 Siemens Ag Cathode for use in electrical discharge devices
JPH01279537A (en) * 1988-04-30 1989-11-09 Futaba Corp Indirectly heated linear cathode
US4925741A (en) * 1989-06-08 1990-05-15 Composite Materials Technology, Inc. Getter wire

Also Published As

Publication number Publication date
BE380140A (en)
GB379334A (en) 1932-08-26
US2075122A (en) 1937-03-30

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