NL42560C - - Google Patents

Info

Publication number
NL42560C
NL42560C NL42560DA NL42560C NL 42560 C NL42560 C NL 42560C NL 42560D A NL42560D A NL 42560DA NL 42560 C NL42560 C NL 42560C
Authority
NL
Netherlands
Application number
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.)
Publication of NL42560C publication Critical patent/NL42560C/xx

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details 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
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22Heaters
NL42560D 1935-03-06 NL42560C (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7041/35A GB453154A (en) 1935-03-06 1935-03-06 Improvements in or relating to indirectly heated cathodes for thermionic valves

Publications (1)

Publication Number Publication Date
NL42560C true NL42560C (en:Method)

Family

ID=9825498

Family Applications (1)

Application Number Title Priority Date Filing Date
NL42560D NL42560C (en:Method) 1935-03-06

Country Status (6)

Country Link
US (1) US2164913A (en:Method)
BE (1) BE411406A (en:Method)
DE (1) DE755099C (en:Method)
FR (1) FR798600A (en:Method)
GB (1) GB453154A (en:Method)
NL (1) NL42560C (en:Method)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487695A (en) * 1946-11-29 1949-11-08 North American Geophysical Com Electric heating element
US2742585A (en) * 1952-08-22 1956-04-17 Gen Electric Electrical vapor detector
BE523420A (en:Method) * 1952-10-11
GB749312A (en) * 1953-05-02 1956-05-23 Emi Ltd Improvements in or relating to indirectly heated cathodes for electron discharge devices
NL193502A (en:Method) * 1954-01-01
US2899664A (en) * 1956-02-27 1959-08-11 Electric heating units and methods of making the same
US2935709A (en) * 1958-03-18 1960-05-03 Ii William A Paine Apparatus and method for strain rod assembly and filament core
US3265924A (en) * 1962-06-29 1966-08-09 York Res Corp Thermionic tube having novel heater and cathode

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH157162A (de) * 1930-07-03 1932-09-15 Gustav Ganz & Co Indirekt geheizte Glühkathode für Entladungsröhren.
NL36127C (en:Method) * 1932-02-16
US2158665A (en) * 1932-06-30 1939-05-16 Hygrade Sylvania Corp Electron discharge device

Also Published As

Publication number Publication date
GB453154A (en) 1936-09-07
BE411406A (en:Method)
FR798600A (fr) 1936-05-20
US2164913A (en) 1939-07-04
DE755099C (de) 1953-10-26

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