FR1254155A - Improvements to electronic tubes - Google Patents

Improvements to electronic tubes

Info

Publication number
FR1254155A
FR1254155A FR824172A FR824172A FR1254155A FR 1254155 A FR1254155 A FR 1254155A FR 824172 A FR824172 A FR 824172A FR 824172 A FR824172 A FR 824172A FR 1254155 A FR1254155 A FR 1254155A
Authority
FR
France
Prior art keywords
electronic tubes
tubes
electronic
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
FR824172A
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 GB1265859A external-priority patent/GB869457A/en
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to FR824172A priority Critical patent/FR1254155A/en
Application granted granted Critical
Publication of FR1254155A publication Critical patent/FR1254155A/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
    • H01J1/24—Insulating layer or body located between heater and emissive material
FR824172A 1959-04-14 1960-04-12 Improvements to electronic tubes Expired FR1254155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR824172A FR1254155A (en) 1959-04-14 1960-04-12 Improvements to electronic tubes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1265859A GB869457A (en) 1959-04-14 1959-04-14 Improvements relating to thermionic valves
FR824172A FR1254155A (en) 1959-04-14 1960-04-12 Improvements to electronic tubes

Publications (1)

Publication Number Publication Date
FR1254155A true FR1254155A (en) 1961-02-17

Family

ID=26185645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR824172A Expired FR1254155A (en) 1959-04-14 1960-04-12 Improvements to electronic tubes

Country Status (1)

Country Link
FR (1) FR1254155A (en)

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