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GB356689A - Improvements in and relating to electrical discharge devices - Google Patents

Improvements in and relating to electrical discharge devices

Info

Publication number
GB356689A
GB356689A GB6989/30A GB698930A GB356689A GB 356689 A GB356689 A GB 356689A GB 6989/30 A GB6989/30 A GB 6989/30A GB 698930 A GB698930 A GB 698930A GB 356689 A GB356689 A GB 356689A
Authority
GB
United Kingdom
Prior art keywords
relating
electrical discharge
discharge devices
per cent
caesium
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
GB6989/30A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB356689A publication Critical patent/GB356689A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)

Landscapes

  • Discharge Lamp (AREA)

Abstract

Cathodes of electric discharge lamps are of alloys of alkali metals, an alloy of 90 per cent potassium and 10 per cent caesium being specified.
GB6989/30A 1929-03-02 1930-03-03 Improvements in and relating to electrical discharge devices Expired GB356689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US356689XA 1929-03-02 1929-03-02

Publications (1)

Publication Number Publication Date
GB356689A true GB356689A (en) 1931-09-03

Family

ID=21884072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6989/30A Expired GB356689A (en) 1929-03-02 1930-03-03 Improvements in and relating to electrical discharge devices

Country Status (1)

Country Link
GB (1) GB356689A (en)

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