GB507589A - Improvements in or relating to secondary emissive electrodes for use in electron multiplier tubes and other electron discharge tubes - Google Patents

Improvements in or relating to secondary emissive electrodes for use in electron multiplier tubes and other electron discharge tubes

Info

Publication number
GB507589A
GB507589A GB34470/37A GB3447037A GB507589A GB 507589 A GB507589 A GB 507589A GB 34470/37 A GB34470/37 A GB 34470/37A GB 3447037 A GB3447037 A GB 3447037A GB 507589 A GB507589 A GB 507589A
Authority
GB
United Kingdom
Prior art keywords
sodium
alkaline earth
per cent
electron
tubes
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
GB34470/37A
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB507589A publication Critical patent/GB507589A/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
    • H01J1/32Secondary-electron-emitting electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus 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
    • H01J9/02Manufacture of electrodes or electrode systems
    • H01J9/12Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
    • H01J9/125Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00Electrodes common to discharge tubes
    • H01J2201/32Secondary emission electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
GB34470/37A 1936-12-11 1937-12-13 Improvements in or relating to secondary emissive electrodes for use in electron multiplier tubes and other electron discharge tubes Expired GB507589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE507589X 1936-12-11

Publications (1)

Publication Number Publication Date
GB507589A true GB507589A (en) 1939-06-13

Family

ID=6546799

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34470/37A Expired GB507589A (en) 1936-12-11 1937-12-13 Improvements in or relating to secondary emissive electrodes for use in electron multiplier tubes and other electron discharge tubes

Country Status (3)

Country Link
FR (1) FR830620A (en:Method)
GB (1) GB507589A (en:Method)
NL (1) NL53852C (en:Method)

Also Published As

Publication number Publication date
NL53852C (en:Method)
FR830620A (fr) 1938-08-04

Similar Documents

Publication Publication Date Title
GB1297865A (en:Method)
CN110153586A (zh) 一种焊芯为无缝药芯焊丝的超低氢、耐吸潮电焊条及制备方法
CN112921360A (zh) 一种熔盐电解制备稀土金属的方法
GB507589A (en) Improvements in or relating to secondary emissive electrodes for use in electron multiplier tubes and other electron discharge tubes
CH647358A5 (de) Elektrochemische zelle mit einer metall-glas-metall-dichtung.
GB272440A (en) Incandescent cathode for electric discharge tubes
GB363784A (en) Improvements in or relating to welding electrodes and rods
GB473844A (en) Improvements in or relating to cathode-ray tubes and like electron discharge devices
GB400431A (en) Improvements relating to the fixation of nitrogen by means of an electric arc
GB538479A (en) Cathodes for electron discharge devices and alloys therefor
GB798449A (en) Primary electric cell
GB334460A (en) Improvements in thermionic cathodes
US2692215A (en) Alkaline dry cell
GB496556A (en) Improvements in electrodes for electron discharge devices
US4173687A (en) Current generating cell with alloy anode
GB1179354A (en) Arc Welding Flux, Electrodes for use therewith and Method of Welding
Glasstone et al. The electro-deposition of iron-cobalt alloys. Part I
GB415181A (en) Improvements in hard soldering mixtures and hard soldering processes
GB1189365A (en) Improvements in or relating to Stable Retention Structures for Electrolytes of High-Temperature Operating Fuel Cells
US3004874A (en) Coated welding electrodes
GB792046A (en) Improvements in or relating to cathode ray tubes for use in television receivers
GB440764A (en) Process for the electrolytic manufacture of borides
GB1398504A (en) Coating surface-oxidized silicon-containing steel
JPH0622119B2 (ja) 亜鉛アルカリ電池
Glasstone et al. The Electro-Deposition of Iron-Cobalt Alloys. Part I/Part II