GB321438A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB321438A
GB321438A GB1994528A GB1994528A GB321438A GB 321438 A GB321438 A GB 321438A GB 1994528 A GB1994528 A GB 1994528A GB 1994528 A GB1994528 A GB 1994528A GB 321438 A GB321438 A GB 321438A
Authority
GB
United Kingdom
Prior art keywords
vapour
cathode
pressure
mercury
gas
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
GB1994528A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to GB1994528A priority Critical patent/GB321438A/en
Publication of GB321438A publication Critical patent/GB321438A/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

  • Arc Welding In General (AREA)

Abstract

321,438. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). July 9, 1928. Vacuum tubes; low-pressure metallic-vapour apparatus. - A rectifier in which the electric field about the anode is stronger than the field about the cathode, is filled with a main gas or vapour to which is added a small percentage of another gas or vapour whose ionization voltage is lower than a metastable state, preferably the first metastable state, of the main gas &c., the pressure of the added gas &c. being such that the starting potential of a discharge when the cathode is negative is lower than when the cathode is positive. As shown, the cathode consists of a cylinder 5 and the anode of an axial wire 4 of tungsten or nickel. The filling is preferably one of the rare gases argon, neon, and helium, with a small percentage of mercury vapour; for example argon at a pressure of 4 cms. of mercury, with 0.025 per cent of mercury vapour at a pressure of 0.01 mm. Dimensions of the electrodes are given.
GB1994528A 1928-07-09 1928-07-09 Improvements in or relating to electric discharge tubes Expired GB321438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1994528A GB321438A (en) 1928-07-09 1928-07-09 Improvements in or relating to electric discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1994528A GB321438A (en) 1928-07-09 1928-07-09 Improvements in or relating to electric discharge tubes

Publications (1)

Publication Number Publication Date
GB321438A true GB321438A (en) 1929-11-11

Family

ID=10137743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1994528A Expired GB321438A (en) 1928-07-09 1928-07-09 Improvements in or relating to electric discharge tubes

Country Status (1)

Country Link
GB (1) GB321438A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523287A (en) * 1947-11-21 1950-09-26 Friedman Herbert Voltage regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523287A (en) * 1947-11-21 1950-09-26 Friedman Herbert Voltage regulator

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