GB497589A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB497589A
GB497589A GB1715137A GB1715137A GB497589A GB 497589 A GB497589 A GB 497589A GB 1715137 A GB1715137 A GB 1715137A GB 1715137 A GB1715137 A GB 1715137A GB 497589 A GB497589 A GB 497589A
Authority
GB
United Kingdom
Prior art keywords
cathode
electrode
anode
grids
june
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
GB1715137A
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
Priority to GB10819/38A priority Critical patent/GB490652A/en
Publication of GB497589A publication Critical patent/GB497589A/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
    • H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
    • 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

Landscapes

  • Discharge Lamp (AREA)
  • Electron Sources, Ion Sources (AREA)
GB1715137A 1936-06-22 1937-06-19 Improvements in or relating to electric discharge tubes Expired GB497589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10819/38A GB490652A (en) 1936-06-22 1937-06-19 Improvements in or relating to electric discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL78256A NL51881C (nl) 1936-06-22 1936-06-22 Electronenbuis, voorzien van een secundaire-emissie-electrode

Publications (1)

Publication Number Publication Date
GB497589A true GB497589A (en) 1938-12-19

Family

ID=19786677

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1715137A Expired GB497589A (en) 1936-06-22 1937-06-19 Improvements in or relating to electric discharge tubes
GB10819/38A Expired GB490652A (en) 1936-06-22 1937-06-19 Improvements in or relating to electric discharge tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB10819/38A Expired GB490652A (en) 1936-06-22 1937-06-19 Improvements in or relating to electric discharge tubes

Country Status (5)

Country Link
BE (1) BE422206A (enrdf_load_stackoverflow)
FR (1) FR823346A (enrdf_load_stackoverflow)
GB (2) GB497589A (enrdf_load_stackoverflow)
NL (1) NL51881C (enrdf_load_stackoverflow)
SE (1) SE102953C1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757225C (de) * 1938-08-30 1952-11-17 Lorenz C Ag Sekundaerelektronenvervielfacher mit mehreren hintereinander angeordneten und konzentrisch zur als Gluehkathode ausgebildeten Primaerelektronenquelle liegenden Prallelektroden
DE874176C (de) * 1939-03-25 1953-04-20 Sueddeutsche Telefon App Sekundaerelektronenvervielfacher mit Gluehkathode
BE864567A (fr) * 1977-04-25 1978-07-03 Chevron Res Procede d'hydrogenation d'esters en acools

Also Published As

Publication number Publication date
GB490652A (en) 1938-08-18
FR823346A (fr) 1938-01-18
NL51881C (nl) 1942-02-16
SE102953C1 (sv) 1941-11-04
BE422206A (enrdf_load_stackoverflow) 1937-07-31

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