FR873550A - Gas-filled electric discharge tubes - Google Patents

Gas-filled electric discharge tubes

Info

Publication number
FR873550A
FR873550A FR873550DA FR873550A FR 873550 A FR873550 A FR 873550A FR 873550D A FR873550D A FR 873550DA FR 873550 A FR873550 A FR 873550A
Authority
FR
France
Prior art keywords
gas
electric discharge
discharge tubes
filled electric
filled
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR873550A publication Critical patent/FR873550A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
    • H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
    • H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
FR873550D 1941-09-19 1941-07-02 Gas-filled electric discharge tubes Expired FR873550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1216041A GB547646A (en) 1941-09-19 1941-09-19 Improvements in or relating to gas filled electric discharge tubes

Publications (1)

Publication Number Publication Date
FR873550A true FR873550A (en) 1942-07-10

Family

ID=9999439

Family Applications (1)

Application Number Title Priority Date Filing Date
FR873550D Expired FR873550A (en) 1941-09-19 1941-07-02 Gas-filled electric discharge tubes

Country Status (2)

Country Link
FR (1) FR873550A (en)
GB (2) GB547646A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721951A (en) * 1950-12-29 1955-10-25 Rca Corp Low reactance electron discharge device
US2892119A (en) * 1955-10-04 1959-06-23 Westinghouse Electric Corp Electron discharge device

Also Published As

Publication number Publication date
GB547646A (en) 1942-09-04
GB597538A (en) 1948-01-28

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