CH208243A - Electric discharge tube. - Google Patents

Electric discharge tube.

Info

Publication number
CH208243A
CH208243A CH208243DA CH208243A CH 208243 A CH208243 A CH 208243A CH 208243D A CH208243D A CH 208243DA CH 208243 A CH208243 A CH 208243A
Authority
CH
Switzerland
Prior art keywords
electric discharge
discharge tube
tube
electric
discharge
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH208243A publication Critical patent/CH208243A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
    • H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission 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
    • H01J1/32—Secondary-electron-emitting electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/32—Secondary emission electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Spark Plugs (AREA)
  • Discharge Lamp (AREA)
CH208243D 1937-08-09 1938-08-08 Electric discharge tube. CH208243A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL208243X 1937-08-09

Publications (1)

Publication Number Publication Date
CH208243A true CH208243A (en) 1940-01-15

Family

ID=19778672

Family Applications (1)

Application Number Title Priority Date Filing Date
CH208243D CH208243A (en) 1937-08-09 1938-08-08 Electric discharge tube.

Country Status (5)

Country Link
BE (1) BE429592A (en)
CH (1) CH208243A (en)
DE (1) DE737996C (en)
FR (1) FR841828A (en)
GB (1) GB517743A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526574A (en) * 1947-06-14 1950-10-17 Bell Telephone Labor Inc Secondary emitter

Also Published As

Publication number Publication date
DE737996C (en) 1943-08-02
FR841828A (en) 1939-05-31
GB517743A (en) 1940-02-07
BE429592A (en)

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