FR32842E - Cathode chaude pour valve termionique ou lampe de t. s. f. - Google Patents

Cathode chaude pour valve termionique ou lampe de t. s. f.

Info

Publication number
FR32842E
FR32842E FR32842DA FR32842E FR 32842 E FR32842 E FR 32842E FR 32842D A FR32842D A FR 32842DA FR 32842 E FR32842 E FR 32842E
Authority
FR
France
Prior art keywords
termionic
lamp
valve
hot 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
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.)
FR DE LAMPES A INCANDESCENCE L
Original Assignee
FR DE LAMPES A INCANDESCENCE L
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 FR DE LAMPES A INCANDESCENCE L filed Critical FR DE LAMPES A INCANDESCENCE L
Application granted granted Critical
Publication of FR32842E publication Critical patent/FR32842E/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
    • H01J1/15—Cathodes heated directly by an electric current
FR32842D 1926-07-21 1926-07-21 Cathode chaude pour valve termionique ou lampe de t. s. f. Expired FR32842E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR32842T 1926-07-21

Publications (1)

Publication Number Publication Date
FR32842E true FR32842E (fr) 1928-02-29

Family

ID=8670522

Family Applications (1)

Application Number Title Priority Date Filing Date
FR32842D Expired FR32842E (fr) 1926-07-21 1926-07-21 Cathode chaude pour valve termionique ou lampe de t. s. f.

Country Status (1)

Country Link
FR (1) FR32842E (fr)

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