FR1017164A - Cathodes for thermionic tubes - Google Patents

Cathodes for thermionic tubes

Info

Publication number
FR1017164A
FR1017164A FR1017164DA FR1017164A FR 1017164 A FR1017164 A FR 1017164A FR 1017164D A FR1017164D A FR 1017164DA FR 1017164 A FR1017164 A FR 1017164A
Authority
FR
France
Prior art keywords
cathodes
thermionic tubes
thermionic
tubes
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)
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.)
MO Valve Co Ltd
Original Assignee
MO Valve Co 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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Application granted granted Critical
Publication of FR1017164A publication Critical patent/FR1017164A/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
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
FR1017164D 1949-05-06 1950-05-06 Cathodes for thermionic tubes Expired FR1017164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1217749A GB666175A (en) 1949-05-06 1949-05-06 Improvements in or relating to directly heated cathodes for thermionic valves

Publications (1)

Publication Number Publication Date
FR1017164A true FR1017164A (en) 1952-12-03

Family

ID=9999753

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1017164D Expired FR1017164A (en) 1949-05-06 1950-05-06 Cathodes for thermionic tubes

Country Status (3)

Country Link
FR (1) FR1017164A (en)
GB (1) GB666175A (en)
NL (1) NL76656C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490577A (en) * 1966-05-18 1967-08-04 Thomson Houston Comp Francaise Cage-Shaped Direct Heating Cathode Improvements

Also Published As

Publication number Publication date
GB666175A (en) 1952-02-06
NL76656C (en)

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