DK118414B - Indirectly heated cathode with a dark colored surface layer on the heater and method of manufacturing one. - Google Patents

Indirectly heated cathode with a dark colored surface layer on the heater and method of manufacturing one.

Info

Publication number
DK118414B
DK118414B DK639667A DK639667A DK118414B DK 118414 B DK118414 B DK 118414B DK 639667 A DK639667 A DK 639667A DK 639667 A DK639667 A DK 639667A DK 118414 B DK118414 B DK 118414B
Authority
DK
Denmark
Prior art keywords
heater
manufacturing
surface layer
indirectly heated
dark colored
Prior art date
Application number
DK639667A
Other languages
Danish (da)
Inventor
J Blatter
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 DK118414B publication Critical patent/DK118414B/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
    • 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
    • H01J1/24—Insulating layer or body located between heater and emissive material
DK639667A 1966-12-23 1967-12-20 Indirectly heated cathode with a dark colored surface layer on the heater and method of manufacturing one. DK118414B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6618058A NL157743B (en) 1966-12-23 1966-12-23 INDIRECTLY HEATED CATHODE.

Publications (1)

Publication Number Publication Date
DK118414B true DK118414B (en) 1970-08-17

Family

ID=19798531

Family Applications (1)

Application Number Title Priority Date Filing Date
DK639667A DK118414B (en) 1966-12-23 1967-12-20 Indirectly heated cathode with a dark colored surface layer on the heater and method of manufacturing one.

Country Status (9)

Country Link
AT (1) AT278183B (en)
BE (1) BE708387A (en)
CH (1) CH469346A (en)
DK (1) DK118414B (en)
ES (1) ES364237A1 (en)
FR (1) FR1549006A (en)
GB (1) GB1188668A (en)
NL (1) NL157743B (en)
NO (1) NO121225B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69016235T2 (en) * 1989-03-24 1995-06-01 Mitsubishi Electric Corp High temperature component.
DE4026301A1 (en) * 1990-08-20 1992-02-27 Siemens Ag ELECTRON EMITTER OF A X-RAY TUBE

Also Published As

Publication number Publication date
NO121225B (en) 1971-02-01
DE1614295B2 (en) 1976-02-12
NL157743B (en) 1978-08-15
CH469346A (en) 1969-02-28
FR1549006A (en) 1968-12-06
GB1188668A (en) 1970-04-22
AT278183B (en) 1970-01-26
DE1614295A1 (en) 1970-08-20
BE708387A (en) 1968-06-21
NL6618058A (en) 1968-06-24
ES364237A1 (en) 1971-02-16

Similar Documents

Publication Publication Date Title
DK118841B (en) Method for producing a film intended for producing local anesthesia on a mucosal area with a given surface area.
CH552435A (en) LOETER WITH ELECTRONIC TEMPERATURE CONTROL.
NL7504083A (en) SELF-REGULATING HEATING ELEMENT.
NL7511173A (en) SELF-REGULATING HEATING ELEMENT.
DK121278B (en) Method for manufacturing a container with an inner reinforcement layer.
IT986606B (en) PROCEDURE FOR MANUFACTURING A TRANSPARENT HEATING PANEL AND THE OBTAINED PANEL
DK127026B (en) Method for producing an electrical resistor with a prescribed resistance value.
NL162286C (en) MICROWAVE HEATER WITH RADIATION CONTROL AND MONITORING.
AT295476B (en) Thin-film apparatus with a two-part heat treatment chamber
DK135977B (en) Method for promoting the adhesion between a substrate and a plastic film by treating the plastic film with electric discharges.
DK118414B (en) Indirectly heated cathode with a dark colored surface layer on the heater and method of manufacturing one.
AT290983B (en) Sheet material with a photosensitive, heat developable layer
CH499942A (en) Surface heating element
DK122407B (en) Rollable roofing material with granulated surface and method of making such a roofing material.
DK124224B (en) Semiconductor element with a semiconductor crystal on a gold layer.
DK118357B (en) Indirectly heated cathode with thin support rods, as well as method of manufacturing such a cathode.
CH483727A (en) Semiconductor element with at least one control electrode
DK131165B (en) Heat exchange element and method of manufacturing such a heat exchange element.
DK113518B (en) Plate of decorative glass and method of its manufacture.
DK118527B (en) Method for manufacturing plastic blanking plates with anchoring elements.
DK113731B (en) Roofing sheet composed of a substrate and an outer layer attached thereto, as well as a method of manufacturing such a roofing sheet.
DD131060A5 (en) HEATING ELEMENT, ESPECIALLY WITH LARGE HEATING SURFACE
FR1506430A (en) Method for manufacturing rivets with areas of different characteristics
AT270501B (en) Escalator with heating
CH536577A (en) Circuit arrangement with a quasi-variable time constant and use of the circuit arrangement