GB730033A - Improvements in or relating to electric gaseous discharge tubes - Google Patents

Improvements in or relating to electric gaseous discharge tubes

Info

Publication number
GB730033A
GB730033A GB18630/52A GB1863052A GB730033A GB 730033 A GB730033 A GB 730033A GB 18630/52 A GB18630/52 A GB 18630/52A GB 1863052 A GB1863052 A GB 1863052A GB 730033 A GB730033 A GB 730033A
Authority
GB
United Kingdom
Prior art keywords
cathode
gas
temperature coefficient
tube
argon
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
GB18630/52A
Inventor
George Francis Klepp
Donald Miller
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 GB18630/52A priority Critical patent/GB730033A/en
Priority to US368641A priority patent/US2874324A/en
Priority to DEI7497A priority patent/DE1033336B/en
Publication of GB730033A publication Critical patent/GB730033A/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

Landscapes

  • Discharge Lamp (AREA)
  • Lasers (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

730,033. Cold-cathode tubes. STANDARD TELEPHONES & CABLES, Ltd. July 23, 1952, No. 18630/52. Class 39(1). A method of manufacture of a cold cathode gas-filled electric glow discharge tube suitable for providing a reference voltage comprises the step of adjusting the pressure of the gas filling, prior to sealing off the envelope of the tube, so that under given operating conditions of normal glow discharge in the sealed-off tube, the temperature coefficient of anode-cathode maintaining voltage is substantially zero. It is stated that rather than to take measurements of the actual temperature coefficient involved, it has been found that the difference, for various gas pressures, between the anode-cathode maintaining voltage for a given cathode current immediately after switching on and after thermal equilibrium has been attained provides a sufficient measure of the relationship between the gas pressure and the temperature coefficient. The curve shown relates to a voltage reference tube having a cylindrical nickel cathode activated by cerium-mischmetal and surrounding a rod anode, the gas filling being 97 per cent neon and 3 per cent argon at an ambient temperature of 20‹ C. The curve shows that the filling pressure could be adjusted to provide any given positive or negative temperature coefficient within the limits of variation of this quantity. Similar results may be obtained when the gas mixture varies between 94 and 99 per cent neon, the remainder being argon, and also for a neon, helium, argon mixture in the ratio of 80: 20: 1.
GB18630/52A 1952-07-23 1952-07-23 Improvements in or relating to electric gaseous discharge tubes Expired GB730033A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB18630/52A GB730033A (en) 1952-07-23 1952-07-23 Improvements in or relating to electric gaseous discharge tubes
US368641A US2874324A (en) 1952-07-23 1953-07-17 Electric gaseous discharge tubes
DEI7497A DE1033336B (en) 1952-07-23 1953-07-21 Gas discharge tubes with cold cathode, especially for keeping voltages constant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18630/52A GB730033A (en) 1952-07-23 1952-07-23 Improvements in or relating to electric gaseous discharge tubes

Publications (1)

Publication Number Publication Date
GB730033A true GB730033A (en) 1955-05-18

Family

ID=10115757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18630/52A Expired GB730033A (en) 1952-07-23 1952-07-23 Improvements in or relating to electric gaseous discharge tubes

Country Status (3)

Country Link
US (1) US2874324A (en)
DE (1) DE1033336B (en)
GB (1) GB730033A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152661A (en) * 1981-03-16 1982-09-21 Toshiba Corp High pressure sodium lamp
US4461981A (en) * 1981-12-26 1984-07-24 Mitsubishi Denki Kabushiki Kaisha Low pressure inert gas discharge device
US5153479A (en) * 1991-05-13 1992-10-06 Gte Products Corporation Miniature low-wattage neon light source

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1749423A (en) * 1930-03-04 A corpora
US1965585A (en) * 1929-10-07 1934-07-10 Gen Electric Vapor Lamp Co Electric gaseous discharge device
US1834251A (en) * 1930-09-02 1931-12-01 Gen Electric Electrical discharge device
DE810410C (en) * 1944-04-22 1951-08-09 Philips Nv Glow discharge tubes for use as an operative part in an electrical circuit
DE875695C (en) * 1945-02-03 1953-05-04 Lorenz C Ag Mixing getter for high vacuum technology
US2507696A (en) * 1948-03-27 1950-05-16 Bell Telephone Labor Inc Glow discharge device
US2728005A (en) * 1949-03-09 1955-12-20 Victoreen Instr Company Gaseous discharge tube

Also Published As

Publication number Publication date
US2874324A (en) 1959-02-17
DE1033336B (en) 1958-07-03

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