GB878260A - Cold-cathode stepping tubes - Google Patents

Cold-cathode stepping tubes

Info

Publication number
GB878260A
GB878260A GB3467159A GB3467159A GB878260A GB 878260 A GB878260 A GB 878260A GB 3467159 A GB3467159 A GB 3467159A GB 3467159 A GB3467159 A GB 3467159A GB 878260 A GB878260 A GB 878260A
Authority
GB
United Kingdom
Prior art keywords
cathode
marker
cathodes
row
cold
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
GB3467159A
Inventor
James Meredith Glackin
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.)
Philips Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB3467159A priority Critical patent/GB878260A/en
Publication of GB878260A publication Critical patent/GB878260A/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
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/007—Sequential discharge tubes

Landscapes

  • Lasers (AREA)

Abstract

878,260. Multi-gap cold-cathode tubes. MULLARD Ltd. Oct. 13, 1959, No.34671/59. Addition to 875,484, Class 39(1). In the cold-cathode stepping tube of the parent Specification in which a central anode is surrounded by a circular row of cathodes and in which there is also provided at least one marker cathode to which and from which a discharge may transfer during the travel of the discharge around the electrode assembly, the surface of the marker cathode has a higher work function than the surfaces of the row of cathodes in order to increase the breakdown voltage between the marker electrode and the anode. The marker cathode may comprise nickel coated with platinum, or a solid platinum wire, and the anode and the row of cathodes may be made of nickel, or the marker cathode may be made of nickel and the row of cathodes of molybdenum.
GB3467159A 1959-10-13 1959-10-13 Cold-cathode stepping tubes Expired GB878260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3467159A GB878260A (en) 1959-10-13 1959-10-13 Cold-cathode stepping tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3467159A GB878260A (en) 1959-10-13 1959-10-13 Cold-cathode stepping tubes

Publications (1)

Publication Number Publication Date
GB878260A true GB878260A (en) 1961-09-27

Family

ID=10368522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3467159A Expired GB878260A (en) 1959-10-13 1959-10-13 Cold-cathode stepping tubes

Country Status (1)

Country Link
GB (1) GB878260A (en)

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