FR1054597A - Cathode for discharge tubes - Google Patents

Cathode for discharge tubes

Info

Publication number
FR1054597A
FR1054597A FR1054597DA FR1054597A FR 1054597 A FR1054597 A FR 1054597A FR 1054597D A FR1054597D A FR 1054597DA FR 1054597 A FR1054597 A FR 1054597A
Authority
FR
France
Prior art keywords
cathode
discharge tubes
tubes
discharge
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR1054597A publication Critical patent/FR1054597A/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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • 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
FR1054597D 1951-04-18 1952-04-17 Cathode for discharge tubes Expired FR1054597A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE309312X 1951-04-18

Publications (1)

Publication Number Publication Date
FR1054597A true FR1054597A (en) 1954-02-11

Family

ID=6121980

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1054597D Expired FR1054597A (en) 1951-04-18 1952-04-17 Cathode for discharge tubes

Country Status (4)

Country Link
CH (1) CH309312A (en)
FR (1) FR1054597A (en)
GB (1) GB721612A (en)
NL (1) NL94985C (en)

Also Published As

Publication number Publication date
GB721612A (en) 1955-01-12
CH309312A (en) 1955-08-31
NL94985C (en)

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