GB508778A - Improvements in electric discharge tubes utilising secondary emission - Google Patents

Improvements in electric discharge tubes utilising secondary emission

Info

Publication number
GB508778A
GB508778A GB909939A GB909939A GB508778A GB 508778 A GB508778 A GB 508778A GB 909939 A GB909939 A GB 909939A GB 909939 A GB909939 A GB 909939A GB 508778 A GB508778 A GB 508778A
Authority
GB
United Kingdom
Prior art keywords
electric discharge
discharge tubes
secondary emission
tubes utilising
utilising secondary
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
GB909939A
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.)
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
Publication of GB508778A publication Critical patent/GB508778A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
GB909939A 1938-03-25 1939-03-22 Improvements in electric discharge tubes utilising secondary emission Expired GB508778A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP2096D DE1080231B (de) 1938-03-25 1938-03-25 Elektrische Entladungsroehre mit einem Elektrodensatz, der eine Sekundaerelektronenemissions-elektrode enthaelt

Publications (1)

Publication Number Publication Date
GB508778A true GB508778A (en) 1939-07-05

Family

ID=7357732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB909939A Expired GB508778A (en) 1938-03-25 1939-03-22 Improvements in electric discharge tubes utilising secondary emission

Country Status (6)

Country Link
BE (1) BE433417A (instruction)
CH (1) CH209456A (instruction)
DE (1) DE1080231B (instruction)
DK (1) DK59049C (instruction)
FR (1) FR852078A (instruction)
GB (1) GB508778A (instruction)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE450216A (instruction) * 1942-04-17

Also Published As

Publication number Publication date
CH209456A (de) 1940-04-15
DE1080231B (de) 1960-04-21
DK59049C (da) 1941-09-22
FR852078A (fr) 1940-01-23
BE433417A (instruction)

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