DK76786C - Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture. - Google Patents

Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture.

Info

Publication number
DK76786C
DK76786C DK40852A DK40852A DK76786C DK 76786 C DK76786 C DK 76786C DK 40852 A DK40852 A DK 40852A DK 40852 A DK40852 A DK 40852A DK 76786 C DK76786 C DK 76786C
Authority
DK
Denmark
Prior art keywords
cathode
manufacture
methods
alkaline earth
compound containing
Prior art date
Application number
DK40852A
Other languages
Danish (da)
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
Application granted granted Critical
Publication of DK76786C publication Critical patent/DK76786C/en

Links

DK40852A 1951-02-08 1952-02-05 Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture. DK76786C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL76786X 1951-02-08

Publications (1)

Publication Number Publication Date
DK76786C true DK76786C (en) 1953-12-07

Family

ID=19757912

Family Applications (1)

Application Number Title Priority Date Filing Date
DK40852A DK76786C (en) 1951-02-08 1952-02-05 Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture.

Country Status (1)

Country Link
DK (1) DK76786C (en)

Similar Documents

Publication Publication Date Title
ES207960A1 (en) Thermionic cathode and method of manufacturing same
DK76786C (en) Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture.
CH260419A (en) Cathode for an electron tube.
DK83211C (en) Cathode, the surface of which is intended for emission, consists of porous refractory metal, and method of its manufacture.
DK116373B (en) Method of manufacturing cathode ray tubes.
DK67511C (en) Discharge tube with Mercury cathode and submerged Ignition Electrode.
DK80717C (en) Method for manufacturing X-ray tube anodes.
BE589228A (en) Thermionic cathode discharge tube.
DK63465C (en) Apparatus for annealing wires for cathodes in electron tubes.
DK88371C (en) Method of manufacturing cathodes for electric discharge tubes.
DK66043C (en) Ion discharge tube with Mercury cathode and floating igniter.
DK68441C (en) Incandescent cathode for electron tubes and process for its manufacture.
BE527465A (en) PURE METAL CATHODE EFFLUCE DISCHARGE TUBE.
FR902587A (en) High Emissivity Incandescent Cathode Improvements for High Vacuum Tubes
DK84693C (en) Cathode body for electric discharge pipes.
DK83050C (en) Cathode body for electric discharge pipes.
DK97049C (en) Electron discharge tube with fluorescent screen.
DK82120C (en) Electric discharge tube with oxide cathode.
DK61853C (en) Oxide cathode for electric discharge tubes and method for its manufacture.
CH404811A (en) Cathode for gas discharge tubes
DK81863C (en) Electron tube with wire-shaped cathode.
CH342296A (en) Electric cold cathode gas discharge tube
DK80494C (en) Process for coating an emitting base material containing alkaline earth metal oxide with low emitting heavy melt oxide.
IE20747L (en) Discharge tube cathodes
IE20689L (en) Discharge tube cathodes