BE383923A - - Google Patents

Info

Publication number
BE383923A
BE383923A BE383923DA BE383923A BE 383923 A BE383923 A BE 383923A BE 383923D A BE383923D A BE 383923DA BE 383923 A BE383923 A BE 383923A
Authority
BE
Belgium
Prior art keywords
tube
mixture
metal
barium
oxide
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE383923A publication Critical patent/BE383923A/fr

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186Getter supports

Landscapes

  • Inorganic Compounds Of Heavy Metals (AREA)
BE383923D BE383923A (ko)

Publications (1)

Publication Number Publication Date
BE383923A true BE383923A (ko)

Family

ID=53033

Family Applications (1)

Application Number Title Priority Date Filing Date
BE383923D BE383923A (ko)

Country Status (1)

Country Link
BE (1) BE383923A (ko)

Similar Documents

Publication Publication Date Title
US4342662A (en) Getter device
US2173259A (en) Active metal compounds for vacuum tubes
US2041802A (en) Electron emitter
US2173258A (en) Active metal compound for vacuum tubes
BE383923A (ko)
US1895855A (en) Method of lamp manufacture
US4530669A (en) Method of making a borided dispenser cathode
JPS58813B2 (ja) 電子管陰極及びその製造方法
BE384143A (ko)
US1752747A (en) Electron-discharge device and getter therefor
BE340858A (ko)
BE414322A (ko)
US20120104930A1 (en) Core-shell electron emission material
US1931647A (en) Process for introducing active metal into alpha vacuum tube
JPH04220924A (ja) 電子管用陰極
US1871352A (en) Electron discharge device and method of manufacture
CH125817A (fr) Dispositif à décharge électrique à vide.
JPH04220925A (ja) 電子管用陰極
BE367786A (ko)
US6641450B2 (en) Method of making a cathode for an electron tube
BE368998A (ko)
BE375351A (ko)
SU313384A1 (ru) Способ изготовления оксидного катода
BE388670A (ko)
BE408092A (ko)