DE2429445A1 - - Google Patents

Info

Publication number
DE2429445A1
DE2429445A1 DE19742429445 DE2429445A DE2429445A1 DE 2429445 A1 DE2429445 A1 DE 2429445A1 DE 19742429445 DE19742429445 DE 19742429445 DE 2429445 A DE2429445 A DE 2429445A DE 2429445 A1 DE2429445 A1 DE 2429445A1
Authority
DE
Germany
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.)
Granted
Application number
DE19742429445
Other languages
German (de)
Other versions
DE2429445C2 (de
DE2429445B1 (de
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 filed Critical
Priority to DE19742429445 priority Critical patent/DE2429445C2/de
Priority claimed from DE19742429445 external-priority patent/DE2429445C2/de
Publication of DE2429445A1 publication Critical patent/DE2429445A1/de
Publication of DE2429445B1 publication Critical patent/DE2429445B1/de
Application granted granted Critical
Publication of DE2429445C2 publication Critical patent/DE2429445C2/de
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
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28Dispenser-type cathodes, e.g. L-cathode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02Electrodes; Magnetic control means; Screens
    • H01J23/04Cathodes
DE19742429445 1974-06-19 Mittelbar geheizte Vorratskathode für elektrische Entladungsgefäße Expired DE2429445C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742429445 DE2429445C2 (de) 1974-06-19 Mittelbar geheizte Vorratskathode für elektrische Entladungsgefäße

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742429445 DE2429445C2 (de) 1974-06-19 Mittelbar geheizte Vorratskathode für elektrische Entladungsgefäße

Publications (3)

Publication Number Publication Date
DE2429445A1 true DE2429445A1 (OSRAM) 1975-09-11
DE2429445B1 DE2429445B1 (de) 1975-09-11
DE2429445C2 DE2429445C2 (de) 1976-04-15

Family

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Also Published As

Publication number Publication date
DE2429445B1 (de) 1975-09-11

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EF Willingness to grant licences
8339 Ceased/non-payment of the annual fee