FR856449A - Electronic discharge devices - Google Patents

Electronic discharge devices

Info

Publication number
FR856449A
FR856449A FR856449DA FR856449A FR 856449 A FR856449 A FR 856449A FR 856449D A FR856449D A FR 856449DA FR 856449 A FR856449 A FR 856449A
Authority
FR
France
Prior art keywords
discharge devices
electronic discharge
electronic
devices
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR856449A publication Critical patent/FR856449A/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
FR856449D 1938-06-24 1939-06-16 Electronic discharge devices Expired FR856449A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1880038A GB516387A (en) 1938-06-24 1938-06-24 Improvements in or relating to electric discharge devices and cathodes therefor

Publications (1)

Publication Number Publication Date
FR856449A true FR856449A (en) 1940-06-13

Family

ID=10118636

Family Applications (1)

Application Number Title Priority Date Filing Date
FR856449D Expired FR856449A (en) 1938-06-24 1939-06-16 Electronic discharge devices

Country Status (2)

Country Link
FR (1) FR856449A (en)
GB (1) GB516387A (en)

Also Published As

Publication number Publication date
GB516387A (en) 1940-01-01

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