GB761882A - Improvements in or relating to the manufacture of cold-cathode electric discharge devices - Google Patents

Improvements in or relating to the manufacture of cold-cathode electric discharge devices

Info

Publication number
GB761882A
GB761882A GB3637453A GB3637453A GB761882A GB 761882 A GB761882 A GB 761882A GB 3637453 A GB3637453 A GB 3637453A GB 3637453 A GB3637453 A GB 3637453A GB 761882 A GB761882 A GB 761882A
Authority
GB
United Kingdom
Prior art keywords
current
resistor
relating
cold
manufacture
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
GB3637453A
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.)
JAMES SAMUEL MILLER
General Electric Co PLC
Original Assignee
JAMES SAMUEL MILLER
General Electric Co 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 JAMES SAMUEL MILLER, General Electric Co PLC filed Critical JAMES SAMUEL MILLER
Priority to GB3637453A priority Critical patent/GB761882A/en
Publication of GB761882A publication Critical patent/GB761882A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/52—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using discharge tubes in series with the load as final control devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/066—Cold cathodes
    • 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)
    • H01J2893/0065—Electrode systems
    • H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Lasers (AREA)

Abstract

761,882. Automatic regulation. GENERAL ELECTRIC CO., Ltd., and MILLER, J. S. Dec. 31, 1954 [Dec. 31, 1953; June 11, 1954], Nos. 36374/53 and 17243/54. Class 38 (4). [Also in Group XL (a)] The cathode-activating current in a discharge tube 19 is maintained constant in spite of fluctuations in internal resistance by providing in series with it a pentode or tetrode V1 which can be operated on a flat part of the current/voltage characteristic. A gas-filled voltage stabilizer V2 has its control electrode 15 connected through a resistor R2 to the positive D.C. supply terminal 11; its anode is connected to the positive terminal through a resistor R3, and to the screen grid 17 of V1 through a variable resistor R4, so that an adjustable but stabilized control voltage is applied to grid 17. This is initially adjusted to give a current of 100 mA. through the tube 19. Suitable circuit components are specified. Specification 759,929, [Group XL (a)], is referred to.
GB3637453A 1953-12-31 1953-12-31 Improvements in or relating to the manufacture of cold-cathode electric discharge devices Expired GB761882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3637453A GB761882A (en) 1953-12-31 1953-12-31 Improvements in or relating to the manufacture of cold-cathode electric discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3637453A GB761882A (en) 1953-12-31 1953-12-31 Improvements in or relating to the manufacture of cold-cathode electric discharge devices

Publications (1)

Publication Number Publication Date
GB761882A true GB761882A (en) 1956-11-21

Family

ID=10387559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3637453A Expired GB761882A (en) 1953-12-31 1953-12-31 Improvements in or relating to the manufacture of cold-cathode electric discharge devices

Country Status (1)

Country Link
GB (1) GB761882A (en)

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