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FR1296399A - Cathode Heating Filament for Electron Tubes - Google Patents

Cathode Heating Filament for Electron Tubes

Info

Publication number
FR1296399A
FR1296399A FR869518A FR869518A FR1296399A FR 1296399 A FR1296399 A FR 1296399A FR 869518 A FR869518 A FR 869518A FR 869518 A FR869518 A FR 869518A FR 1296399 A FR1296399 A FR 1296399A
Authority
FR
France
Prior art keywords
heating filament
electron tubes
cathode heating
cathode
tubes
Prior art date
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.)
Expired
Application number
FR869518A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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
Priority claimed from US50706A external-priority patent/US3195004A/en
Application filed by RCA Corp, Radio Corporation of America filed Critical RCA Corp
Priority to FR869518A priority Critical patent/FR1296399A/en
Application granted granted Critical
Publication of FR1296399A publication Critical patent/FR1296399A/en
Expired legal-status Critical Current

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
FR869518A 1960-08-19 1961-07-31 Cathode Heating Filament for Electron Tubes Expired FR1296399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR869518A FR1296399A (en) 1960-08-19 1961-07-31 Cathode Heating Filament for Electron Tubes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50706A US3195004A (en) 1960-08-19 1960-08-19 Cathode heater for electron discharge devices
FR869518A FR1296399A (en) 1960-08-19 1961-07-31 Cathode Heating Filament for Electron Tubes

Publications (1)

Publication Number Publication Date
FR1296399A true FR1296399A (en) 1962-06-15

Family

ID=26191678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR869518A Expired FR1296399A (en) 1960-08-19 1961-07-31 Cathode Heating Filament for Electron Tubes

Country Status (1)

Country Link
FR (1) FR1296399A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183602B (en) * 1962-07-30 1964-12-17 Philips Nv Method for covering a filament for an indirectly heated cathode with a black-radiating insulating layer
DE1238577B (en) * 1963-02-06 1967-04-13 Philips Nv Filament for indirectly heated cathodes for electron tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183602B (en) * 1962-07-30 1964-12-17 Philips Nv Method for covering a filament for an indirectly heated cathode with a black-radiating insulating layer
DE1238577B (en) * 1963-02-06 1967-04-13 Philips Nv Filament for indirectly heated cathodes for electron tubes

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