FR835633A - Improvements to electric discharge tubes - Google Patents

Improvements to electric discharge tubes

Info

Publication number
FR835633A
FR835633A FR835633DA FR835633A FR 835633 A FR835633 A FR 835633A FR 835633D A FR835633D A FR 835633DA FR 835633 A FR835633 A FR 835633A
Authority
FR
France
Prior art keywords
electric discharge
discharge tubes
tubes
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 FR835633A publication Critical patent/FR835633A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/32—Secondary-electron-emitting electrodes
FR835633D 1937-03-25 1938-03-23 Improvements to electric discharge tubes Expired FR835633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL207131X 1937-03-25

Publications (1)

Publication Number Publication Date
FR835633A true FR835633A (en) 1938-12-27

Family

ID=19778610

Family Applications (1)

Application Number Title Priority Date Filing Date
FR835633D Expired FR835633A (en) 1937-03-25 1938-03-23 Improvements to electric discharge tubes

Country Status (4)

Country Link
US (1) US2198329A (en)
BE (1) BE427143A (en)
CH (1) CH207131A (en)
FR (1) FR835633A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE857535C (en) * 1939-08-08 1952-12-01 Telefunken Gmbh Impact electrode for secondary electron multiplication
DE874176C (en) * 1939-03-25 1953-04-20 Sueddeutsche Telefon App Secondary electron multiplier with glow cathode
DE895629C (en) * 1940-07-31 1953-11-05 Zeiss Ikon Ag Process for the manufacture of secondary emission cathodes

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE446289A (en) * 1941-07-03
US2457947A (en) * 1942-12-21 1949-01-04 Albert G Thomas High-frequency oscillation tube
US2548514A (en) * 1945-08-23 1951-04-10 Bramley Jenny Process of producing secondaryelectron-emitting surfaces
GB670582A (en) * 1945-11-07 1952-04-23 Emi Ltd Improvements in or relating to electron discharge devices employing secondary-electron-emission and electrodes for use therein
US2540635A (en) * 1948-05-27 1951-02-06 Rca Corp Cesiated monoscope
US2600112A (en) * 1948-06-30 1952-06-10 Sylvania Electric Prod Electron emitter
NL77182C (en) * 1948-12-04
US2722490A (en) * 1950-07-24 1955-11-01 Bell Telephone Labor Inc Germanium elements and methods of preparing same
US2730640A (en) * 1951-08-08 1956-01-10 Gen Electric Secondary electron emitting system
DE1015947B (en) * 1951-10-23 1957-09-19 Telefunken Gmbh Amplifier tubes with high electronic input resistance
DE1078240B (en) * 1953-12-17 1960-03-24 Siemens Ag Electron tubes for amplifying signals, e.g. B. in the manner of a hexode
US2802127A (en) * 1954-02-03 1957-08-06 Dobischek Dietrich Dynode coating
US2846338A (en) * 1954-08-03 1958-08-05 William G Shepherd Secondary electron emitter
US2887597A (en) * 1955-10-27 1959-05-19 Hughes Aircraft Co Storage screen for direct-viewing storage tube
US3410716A (en) * 1965-04-01 1968-11-12 Trw Inc Coating of refractory metals with metal modified oxides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE874176C (en) * 1939-03-25 1953-04-20 Sueddeutsche Telefon App Secondary electron multiplier with glow cathode
DE857535C (en) * 1939-08-08 1952-12-01 Telefunken Gmbh Impact electrode for secondary electron multiplication
DE895629C (en) * 1940-07-31 1953-11-05 Zeiss Ikon Ag Process for the manufacture of secondary emission cathodes

Also Published As

Publication number Publication date
BE427143A (en)
CH207131A (en) 1939-09-30
US2198329A (en) 1940-04-23

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