GB807123A - Improvements in or relating to electric discharge devices - Google Patents

Improvements in or relating to electric discharge devices

Info

Publication number
GB807123A
GB807123A GB1596955A GB1596955A GB807123A GB 807123 A GB807123 A GB 807123A GB 1596955 A GB1596955 A GB 1596955A GB 1596955 A GB1596955 A GB 1596955A GB 807123 A GB807123 A GB 807123A
Authority
GB
United Kingdom
Prior art keywords
cathode
relating
electric discharge
discharge devices
materials
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
GB1596955A
Inventor
Dennis Arthur Day
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1596955A priority Critical patent/GB807123A/en
Publication of GB807123A publication Critical patent/GB807123A/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

Landscapes

  • Discharge Lamp (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

807,123. Thermionic cathode constructions and materials. STANDARD TELEPHONES & CABLES Ltd. June 3, 1955, No. 15969/55. Class 39(1). An indirectly heated tubular cathode 1 having the heater and cathode leads 4, 5, 6 all brought out at one end, has the other end coated with a material 7 which increases the radiation of heat. The temperature difference between the two ends of the cathode is thus reduced. Suitable materials are titanium dioxide or zirconium. In a rectifier having two separate anodes, the common cathode may have a band of this material at its centre as well as at the farther end. Some comparative temperatures are given.
GB1596955A 1955-06-03 1955-06-03 Improvements in or relating to electric discharge devices Expired GB807123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1596955A GB807123A (en) 1955-06-03 1955-06-03 Improvements in or relating to electric discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1596955A GB807123A (en) 1955-06-03 1955-06-03 Improvements in or relating to electric discharge devices

Publications (1)

Publication Number Publication Date
GB807123A true GB807123A (en) 1959-01-07

Family

ID=10068843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1596955A Expired GB807123A (en) 1955-06-03 1955-06-03 Improvements in or relating to electric discharge devices

Country Status (1)

Country Link
GB (1) GB807123A (en)

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