FR839826A - Secondary electron amplifier - Google Patents

Secondary electron amplifier

Info

Publication number
FR839826A
FR839826A FR839826DA FR839826A FR 839826 A FR839826 A FR 839826A FR 839826D A FR839826D A FR 839826DA FR 839826 A FR839826 A FR 839826A
Authority
FR
France
Prior art keywords
secondary electron
electron amplifier
amplifier
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
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 FR839826A publication Critical patent/FR839826A/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
    • H01J43/04—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/023—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof secondary-electron emitting electrode arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
FR839826D 1937-06-26 1938-06-25 Secondary electron amplifier Expired FR839826A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE428729X 1937-06-26
DEF4676D DE930698C (en) 1937-06-26 1938-01-30 Secondary amplifier with impact grilles
GB20162/38A GB516785A (en) 1937-06-26 1938-07-07 Improvements in or relating to electron multipliers

Publications (1)

Publication Number Publication Date
FR839826A true FR839826A (en) 1939-04-13

Family

ID=41682616

Family Applications (1)

Application Number Title Priority Date Filing Date
FR839826D Expired FR839826A (en) 1937-06-26 1938-06-25 Secondary electron amplifier

Country Status (7)

Country Link
US (2) US2221447A (en)
BE (2) BE428729A (en)
CH (1) CH208634A (en)
DE (1) DE930698C (en)
FR (1) FR839826A (en)
GB (1) GB516785A (en)
NL (1) NL52081C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442848A (en) * 1942-03-09 1948-06-08 Farnsworth Res Corp Electron control tube
US4878867A (en) * 1988-07-29 1989-11-07 Ralphco Inc. Coin bank

Also Published As

Publication number Publication date
BE432129A (en) 1939-02-28
CH208634A (en) 1940-02-15
US2221447A (en) 1940-11-12
BE428729A (en) 1938-07-30
DE930698C (en) 1955-07-21
NL52081C (en) 1942-03-16
GB516785A (en) 1940-01-11
US2245895A (en) 1941-06-17

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