FR836986A - Tube à électrons secondaires - Google Patents

Tube à électrons secondaires

Info

Publication number
FR836986A
FR836986A FR836986DA FR836986A FR 836986 A FR836986 A FR 836986A FR 836986D A FR836986D A FR 836986DA FR 836986 A FR836986 A FR 836986A
Authority
FR
France
Prior art keywords
secondary electron
electron tube
tube
electron
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
English (en)
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh GmbH
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 Fernseh GmbH filed Critical Fernseh GmbH
Application granted granted Critical
Publication of FR836986A publication Critical patent/FR836986A/fr
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
    • H01J43/04—Electron multipliers
    • H01J43/06—Electrode arrangements
    • H01J43/18—Electrode arrangements using essentially more than one dynode
    • H01J43/22—Dynodes consisting of electron-permeable material, e.g. foil, grid, tube, venetian blind
FR836986D 1937-04-23 1938-04-22 Tube à électrons secondaires Expired FR836986A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE513879X 1937-04-23

Publications (1)

Publication Number Publication Date
FR836986A true FR836986A (fr) 1939-01-31

Family

ID=6548536

Family Applications (1)

Application Number Title Priority Date Filing Date
FR836986D Expired FR836986A (fr) 1937-04-23 1938-04-22 Tube à électrons secondaires

Country Status (4)

Country Link
US (1) US2238634A (pm)
BE (1) BE427645A (pm)
FR (1) FR836986A (pm)
GB (1) GB513879A (pm)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728014A (en) * 1951-04-26 1955-12-20 Rca Corp Electron lens for multiplier phototubes with very low spherical aberration

Also Published As

Publication number Publication date
GB513879A (en) 1939-10-24
BE427645A (pm)
US2238634A (en) 1941-04-15

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