BE432129A - - Google Patents

Info

Publication number
BE432129A
BE432129A BE432129DA BE432129A BE 432129 A BE432129 A BE 432129A BE 432129D A BE432129D A BE 432129DA BE 432129 A BE432129 A BE 432129A
Authority
BE
Belgium
Prior art keywords
emi
letter
plate
rebound
copy
Prior art date
Application number
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE432129A publication Critical patent/BE432129A/fr

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

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Cold Cathode And The Manufacture (AREA)
BE432129D 1937-06-26 1939-01-13 BE432129A (fi)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE428729X 1937-06-26
DEF4676D DE930698C (de) 1937-06-26 1938-01-30 Sekundaerverstaerker mit Prallgittern
GB20162/38A GB516785A (en) 1937-06-26 1938-07-07 Improvements in or relating to electron multipliers

Publications (1)

Publication Number Publication Date
BE432129A true BE432129A (fi) 1939-02-28

Family

ID=41682616

Family Applications (2)

Application Number Title Priority Date Filing Date
BE428729D BE428729A (fi) 1937-06-26 1938-06-21
BE432129D BE432129A (fi) 1937-06-26 1939-01-13

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BE428729D BE428729A (fi) 1937-06-26 1938-06-21

Country Status (7)

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

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
US2245895A (en) 1941-06-17
US2221447A (en) 1940-11-12
FR839826A (fr) 1939-04-13
NL52081C (fi) 1942-03-16
DE930698C (de) 1955-07-21
GB516785A (en) 1940-01-11
BE428729A (fi) 1938-07-30
CH208634A (de) 1940-02-15

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