DK118198B - Heater for indirectly heated cathodes, which body has an insulating layer of alumina, on the outside of which a dark-colored layer is placed. - Google Patents

Heater for indirectly heated cathodes, which body has an insulating layer of alumina, on the outside of which a dark-colored layer is placed.

Info

Publication number
DK118198B
DK118198B DK487566AA DK487566A DK118198B DK 118198 B DK118198 B DK 118198B DK 487566A A DK487566A A DK 487566AA DK 487566 A DK487566 A DK 487566A DK 118198 B DK118198 B DK 118198B
Authority
DK
Denmark
Prior art keywords
alumina
dark
heater
outside
indirectly heated
Prior art date
Application number
DK487566AA
Other languages
Danish (da)
Inventor
F Almer
A Kuiper
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 DK118198B publication Critical patent/DK118198B/en

Links

Classifications

    • 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
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22—Heaters
DK487566AA 1965-09-23 1966-09-20 Heater for indirectly heated cathodes, which body has an insulating layer of alumina, on the outside of which a dark-colored layer is placed. DK118198B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6512348A NL6512348A (en) 1965-09-23 1965-09-23

Publications (1)

Publication Number Publication Date
DK118198B true DK118198B (en) 1970-07-20

Family

ID=19794213

Family Applications (1)

Application Number Title Priority Date Filing Date
DK487566AA DK118198B (en) 1965-09-23 1966-09-20 Heater for indirectly heated cathodes, which body has an insulating layer of alumina, on the outside of which a dark-colored layer is placed.

Country Status (12)

Country Link
US (1) US3490944A (en)
AT (1) AT263156B (en)
BE (1) BE687198A (en)
CH (1) CH477085A (en)
DE (1) DE1564448C3 (en)
DK (1) DK118198B (en)
ES (1) ES331443A1 (en)
FI (1) FI43089B (en)
FR (1) FR1501048A (en)
GB (1) GB1121035A (en)
NL (1) NL6512348A (en)
NO (1) NO119366B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581144A (en) * 1969-03-27 1971-05-25 Gen Electric Metal-clad insulated electrical heater
US5293410A (en) * 1991-11-27 1994-03-08 Schlumberger Technology Corporation Neutron generator
US20090108192A1 (en) * 2007-10-25 2009-04-30 Schulumberger Technology Corporation Tritium-Tritium Neutron Generator Logging Tool

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL268393A (en) * 1960-08-19
US3328201A (en) * 1964-04-27 1967-06-27 Rca Corp Heater for electron tubes

Also Published As

Publication number Publication date
CH477085A (en) 1969-08-15
NO119366B (en) 1970-05-11
GB1121035A (en) 1968-07-24
US3490944A (en) 1970-01-20
NL6512348A (en) 1967-03-28
FI43089B (en) 1970-10-01
DE1564448B2 (en) 1975-05-15
DE1564448C3 (en) 1976-01-02
BE687198A (en) 1967-03-21
DE1564448A1 (en) 1970-03-05
FR1501048A (en) 1967-11-10
AT263156B (en) 1968-07-10
ES331443A1 (en) 1967-08-01

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