FR1175593A - Electronic tube filaments improvements - Google Patents

Electronic tube filaments improvements

Info

Publication number
FR1175593A
FR1175593A FR1175593DA FR1175593A FR 1175593 A FR1175593 A FR 1175593A FR 1175593D A FR1175593D A FR 1175593DA FR 1175593 A FR1175593 A FR 1175593A
Authority
FR
France
Prior art keywords
electronic tube
tube filaments
filaments
electronic
tube
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR1175593A publication Critical patent/FR1175593A/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
FR1175593D 1957-05-21 1957-05-21 Electronic tube filaments improvements Expired FR1175593A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1175593T 1957-05-21

Publications (1)

Publication Number Publication Date
FR1175593A true FR1175593A (en) 1959-03-27

Family

ID=9659251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1175593D Expired FR1175593A (en) 1957-05-21 1957-05-21 Electronic tube filaments improvements

Country Status (1)

Country Link
FR (1) FR1175593A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104496A2 (en) * 1982-09-29 1984-04-04 The Perkin-Elmer Corporation Electron emitter assembly
EP0980088A1 (en) * 1998-08-07 2000-02-16 Eaton Corporation Toroidal filament for plasma generation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104496A2 (en) * 1982-09-29 1984-04-04 The Perkin-Elmer Corporation Electron emitter assembly
EP0104496A3 (en) * 1982-09-29 1986-10-01 The Perkin-Elmer Corporation Electron emitter assembly
EP0980088A1 (en) * 1998-08-07 2000-02-16 Eaton Corporation Toroidal filament for plasma generation

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