FR850654A - Method of manufacturing an electric discharge tube comprising a secondary emission electrode - Google Patents

Method of manufacturing an electric discharge tube comprising a secondary emission electrode

Info

Publication number
FR850654A
FR850654A FR850654DA FR850654A FR 850654 A FR850654 A FR 850654A FR 850654D A FR850654D A FR 850654DA FR 850654 A FR850654 A FR 850654A
Authority
FR
France
Prior art keywords
manufacturing
discharge tube
electric discharge
emission electrode
secondary emission
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
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR850654A publication Critical patent/FR850654A/en
Expired legal-status Critical Current

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
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/32—Secondary emission electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR850654D 1938-02-22 1939-02-21 Method of manufacturing an electric discharge tube comprising a secondary emission electrode Expired FR850654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL208636X 1938-02-22

Publications (1)

Publication Number Publication Date
FR850654A true FR850654A (en) 1939-12-22

Family

ID=19778700

Family Applications (1)

Application Number Title Priority Date Filing Date
FR850654D Expired FR850654A (en) 1938-02-22 1939-02-21 Method of manufacturing an electric discharge tube comprising a secondary emission electrode

Country Status (4)

Country Link
BE (1) BE432879A (en)
CH (1) CH208636A (en)
FR (1) FR850654A (en)
NL (1) NL49428C (en)

Also Published As

Publication number Publication date
CH208636A (en) 1940-02-15
NL49428C (en)
BE432879A (en)

Similar Documents

Publication Publication Date Title
FR835838A (en) Method of manufacturing an electric discharge tube comprising a secondary emission electrode
FR850654A (en) Method of manufacturing an electric discharge tube comprising a secondary emission electrode
CH269632A (en) Secondary emission electron tube for very high frequencies.
FR827738A (en) Electric discharge tube comprising a secondary emission electrode
FR836016A (en) Manufacturing process for high secondary emission electrodes
FR845087A (en) High secondary electron emission cathodes
FR868359A (en) Method for manufacturing secondary emission cathodes
FR806105A (en) Secondary emission electron tube
CH234237A (en) A method of manufacturing emissive electrodes for electric discharge devices.
FR872423A (en) Electric discharge vessel comprising a plurality of electrodes, particularly a secondary electron multiplier
DK58107C (en) Method of Manufacturing an Electric Discharge Pipe with a Secondary Emission Electrode.
FR894732A (en) Electric discharge tube comprising a secondary emission electrode
FR868414A (en) Manufacturing process for electric discharge tubes, more particularly with metal sheath
FR868086A (en) Secondary emission cathode, and method for its manufacture
FR858676A (en) Method of manufacturing electric discharge receptacles, preferably with a metal bulb
FR868877A (en) Method of manufacturing electric discharge receptacles, preferably with a metal bulb
FR713650A (en) Electric discharge tube comprising a cathode covered with an emissive substance
FR841922A (en) Manufacturing process of electric discharge tubes
FR872760A (en) Electrical assembly comprising a secondary emission tube
FR852078A (en) Electric discharge tubes
FR1392937A (en) Method of manufacturing a secondary emission electrode for electron tubes
FR841921A (en) Manufacturing process of electric discharge tubes
AU130138A (en) Improved method of manufacturing electrodes with a high secondary emission
FR869470A (en) Secondary emission cathode
FR848550A (en) Electric discharge tube