FR1247284A - Improvements made to grids for electron tubes - Google Patents

Improvements made to grids for electron tubes

Info

Publication number
FR1247284A
FR1247284A FR817873A FR817873A FR1247284A FR 1247284 A FR1247284 A FR 1247284A FR 817873 A FR817873 A FR 817873A FR 817873 A FR817873 A FR 817873A FR 1247284 A FR1247284 A FR 1247284A
Authority
FR
France
Prior art keywords
grids
improvements made
electron tubes
tubes
electron
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
FR817873A
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
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Application granted granted Critical
Publication of FR1247284A publication Critical patent/FR1247284A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture
    • H01J2893/0025—Manufacture by winding wire upon a support
FR817873A 1959-02-12 1960-02-08 Improvements made to grids for electron tubes Expired FR1247284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB496359A GB865258A (en) 1959-02-12 1959-02-12 Improvements relating to the manufacture of grid electrodes for electric discharge devices

Publications (1)

Publication Number Publication Date
FR1247284A true FR1247284A (en) 1960-11-25

Family

ID=9787191

Family Applications (1)

Application Number Title Priority Date Filing Date
FR817873A Expired FR1247284A (en) 1959-02-12 1960-02-08 Improvements made to grids for electron tubes

Country Status (2)

Country Link
FR (1) FR1247284A (en)
GB (1) GB865258A (en)

Also Published As

Publication number Publication date
GB865258A (en) 1961-04-12

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