GB319652A - Improvements relating to cathodes for electron discharge tubes - Google Patents

Improvements relating to cathodes for electron discharge tubes

Info

Publication number
GB319652A
GB319652A GB7512/29A GB751229A GB319652A GB 319652 A GB319652 A GB 319652A GB 7512/29 A GB7512/29 A GB 7512/29A GB 751229 A GB751229 A GB 751229A GB 319652 A GB319652 A GB 319652A
Authority
GB
United Kingdom
Prior art keywords
cathode
cathodes
improvements relating
discharge tubes
electron 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
GB7512/29A
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.)
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
Publication of GB319652A publication Critical patent/GB319652A/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
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/24—Insulating layer or body located between heater and emissive material

Landscapes

  • Electron Sources, Ion Sources (AREA)
GB7512/29A 1928-09-25 1929-03-07 Improvements relating to cathodes for electron discharge tubes Expired GB319652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL319652X 1928-09-25

Publications (1)

Publication Number Publication Date
GB319652A true GB319652A (en) 1930-04-03

Family

ID=19783934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7512/29A Expired GB319652A (en) 1928-09-25 1929-03-07 Improvements relating to cathodes for electron discharge tubes

Country Status (3)

Country Link
BE (1) BE363575A (enrdf_load_stackoverflow)
FR (1) FR682098A (enrdf_load_stackoverflow)
GB (1) GB319652A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE363575A (enrdf_load_stackoverflow)
FR682098A (fr) 1930-05-22

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