FR823347A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR823347A
FR823347A FR823347DA FR823347A FR 823347 A FR823347 A FR 823347A FR 823347D A FR823347D A FR 823347DA FR 823347 A FR823347 A FR 823347A
Authority
FR
France
Prior art keywords
electric discharge
discharge tube
tube
electric
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.)
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 FR823347A publication Critical patent/FR823347A/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
FR823347D 1936-06-22 1937-06-21 Electric discharge tube Expired FR823347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2171214X 1936-06-22

Publications (1)

Publication Number Publication Date
FR823347A true FR823347A (en) 1938-01-18

Family

ID=19873789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR823347D Expired FR823347A (en) 1936-06-22 1937-06-21 Electric discharge tube

Country Status (4)

Country Link
US (1) US2171214A (en)
BE (1) BE422207A (en)
FR (1) FR823347A (en)
NL (1) NL50457C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1193614B (en) * 1960-03-11 1965-05-26 English Electric Valve Co Ltd Electron tubes with a grid covered with secondary emission-capable material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420744A (en) * 1944-05-04 1947-05-20 Rca Corp High-frequency oscillator of the secondary electron-emission type
NL82249C (en) * 1947-04-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1193614B (en) * 1960-03-11 1965-05-26 English Electric Valve Co Ltd Electron tubes with a grid covered with secondary emission-capable material

Also Published As

Publication number Publication date
NL50457C (en)
US2171214A (en) 1939-08-29
BE422207A (en)

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