GB642364A - Improvements in or relating to indirectly heated cathodes - Google Patents

Improvements in or relating to indirectly heated cathodes

Info

Publication number
GB642364A
GB642364A GB14034/46A GB1403446A GB642364A GB 642364 A GB642364 A GB 642364A GB 14034/46 A GB14034/46 A GB 14034/46A GB 1403446 A GB1403446 A GB 1403446A GB 642364 A GB642364 A GB 642364A
Authority
GB
United Kingdom
Prior art keywords
layers
nickel
relating
indirectly heated
outer layer
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
GB14034/46A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
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 Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB642364A publication Critical patent/GB642364A/en
Expired legal-status Critical Current

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
    • H01J1/26Supports for the emissive material

Landscapes

  • Laminated Bodies (AREA)
GB14034/46A 1941-10-14 1946-05-09 Improvements in or relating to indirectly heated cathodes Expired GB642364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL241286X 1941-10-14

Publications (1)

Publication Number Publication Date
GB642364A true GB642364A (en) 1950-08-30

Family

ID=19780558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14034/46A Expired GB642364A (en) 1941-10-14 1946-05-09 Improvements in or relating to indirectly heated cathodes

Country Status (5)

Country Link
BE (1) BE447546A (enrdf_load_stackoverflow)
CH (1) CH241286A (enrdf_load_stackoverflow)
FR (1) FR886734A (enrdf_load_stackoverflow)
GB (1) GB642364A (enrdf_load_stackoverflow)
NL (1) NL59337C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH241286A (de) 1946-02-28
NL59337C (enrdf_load_stackoverflow)
BE447546A (enrdf_load_stackoverflow)
FR886734A (fr) 1943-10-22

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