GB490229A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB490229A
GB490229A GB4030/37A GB403037A GB490229A GB 490229 A GB490229 A GB 490229A GB 4030/37 A GB4030/37 A GB 4030/37A GB 403037 A GB403037 A GB 403037A GB 490229 A GB490229 A GB 490229A
Authority
GB
United Kingdom
Prior art keywords
targets
annular
electrodes
cones
envelope
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
GB4030/37A
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.)
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
Publication of GB490229A publication Critical patent/GB490229A/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
    • H01J43/20—Dynodes consisting of sheet material, e.g. plane, bent

Landscapes

  • Physical Vapour Deposition (AREA)
  • Electron Tubes For Measurement (AREA)
GB4030/37A 1936-02-10 1937-02-10 Improvements in or relating to electron discharge devices Expired GB490229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE490229X 1936-02-10

Publications (1)

Publication Number Publication Date
GB490229A true GB490229A (en) 1938-08-10

Family

ID=6544082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4030/37A Expired GB490229A (en) 1936-02-10 1937-02-10 Improvements in or relating to electron discharge devices

Country Status (4)

Country Link
US (1) US2216282A (sl)
FR (1) FR817566A (sl)
GB (1) GB490229A (sl)
NL (1) NL47938C (sl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750071C (de) * 1939-06-21 1944-12-12 Verfahren zur Herstellung von Elektronenvervielfachern mit Elektroden verschiedenen Sekundaeremissionsgrades
US3506868A (en) * 1967-05-22 1970-04-14 Bendix Corp Positive-type electron multiplier channels connected in series
US4184098A (en) * 1976-04-22 1980-01-15 S.R.C. Laboratories, Inc. Cone type dynode for photomultiplier tube
US4143291A (en) * 1976-04-22 1979-03-06 S.R.C. Laboratories, Inc. Dynode for a photomultiplier tube

Also Published As

Publication number Publication date
FR817566A (fr) 1937-09-06
NL47938C (sl)
US2216282A (en) 1940-10-01

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