FR42178E - Improvements to electronic discharge valves - Google Patents

Improvements to electronic discharge valves

Info

Publication number
FR42178E
FR42178E FR42178DA FR42178E FR 42178 E FR42178 E FR 42178E FR 42178D A FR42178D A FR 42178DA FR 42178 E FR42178 E FR 42178E
Authority
FR
France
Prior art keywords
discharge valves
electronic discharge
electronic
valves
discharge
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
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR42178E publication Critical patent/FR42178E/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
FR42178D 1931-08-27 1932-08-04 Improvements to electronic discharge valves Expired FR42178E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US559753A US1942080A (en) 1931-08-27 1931-08-27 Heater for indirectly heated cathodes

Publications (1)

Publication Number Publication Date
FR42178E true FR42178E (en) 1933-05-31

Family

ID=24234877

Family Applications (1)

Application Number Title Priority Date Filing Date
FR42178D Expired FR42178E (en) 1931-08-27 1932-08-04 Improvements to electronic discharge valves

Country Status (3)

Country Link
US (1) US1942080A (en)
FR (1) FR42178E (en)
GB (1) GB390405A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444072A (en) * 1942-10-08 1948-06-29 Raytheon Mfg Co Gaseous electrical space discharge devices and circuits therefor
US2514165A (en) * 1942-11-23 1950-07-04 M O Valve Co Ltd Thermionic gas-filled rectifier
US2424293A (en) * 1944-03-09 1947-07-22 Westinghouse Electric Corp Thermionic cathode construction
US2436907A (en) * 1945-06-23 1948-03-02 Nasa Indirectly heated cathode
US2653268A (en) * 1950-05-01 1953-09-22 Beverly D Kumpfer Directly heated cathode structure
US3295090A (en) * 1962-02-26 1966-12-27 Dale Electronics Electrical resistor having a core element with high heat dissipating properties
US3248680A (en) * 1962-12-11 1966-04-26 Ward Leonard Electric Co Resistor
US3265920A (en) * 1964-06-22 1966-08-09 Rauland Corp Electron-discharge device cathode assembly with radiation shield

Also Published As

Publication number Publication date
US1942080A (en) 1934-01-02
GB390405A (en) 1933-04-06

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