GB418828A - Improvements in or relating to gasfilled triodes, tetrodes, pentodes and the like - Google Patents

Improvements in or relating to gasfilled triodes, tetrodes, pentodes and the like

Info

Publication number
GB418828A
GB418828A GB1264833A GB1264833A GB418828A GB 418828 A GB418828 A GB 418828A GB 1264833 A GB1264833 A GB 1264833A GB 1264833 A GB1264833 A GB 1264833A GB 418828 A GB418828 A GB 418828A
Authority
GB
United Kingdom
Prior art keywords
tube
magnetic field
anode
cathode
envelope
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
GB1264833A
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.)
General Electric Co PLC
Original Assignee
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1264833A priority Critical patent/GB418828A/en
Priority to DEG87987D priority patent/DE679657C/en
Publication of GB418828A publication Critical patent/GB418828A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00Gas-filled discharge tubes with solid cathode
    • H01J17/02Details
    • H01J17/14Magnetic means for controlling the discharge

Landscapes

  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Lasers (AREA)

Abstract

418,828. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., c/o General Electric Co., Wembley, Middlesex. May 1, 1933, Nos. 12648 and 35245. [Class 39 (i).] In a gas-filled tube, such as a triode, tetrode or pentode, the difference between the potentials on the grid necessary for starting and stopping the discharge is reduced by applying to the tube a magnetic field having a component perpendicular to the cathode to anode electron path. In one form an anode 4 surrounds a grid 3 and an indirectly-heated cathode 2 in a tube 1 having a filling of mercury vapour, and a solenoid 5 surrounding the tube produces a magnetic field parallel to the cathode 2. A permanent magnet may replace the solenoid 5, and either means for producing the field may be arranged inside the envelope. The magnetic field is preferably arranged so that the difference between the starting and stopping potentials is a minimum. The tube may be used in circuits, such as that described in Specification 389,917, which generate a square wave form. A suitable tube for use according to the invention is one in which the anode is of copper or other non-magnetic material and forms part of the envelope. Characteristic curves are given for a tube with and without a magnetic field.
GB1264833A 1933-05-01 1933-05-01 Improvements in or relating to gasfilled triodes, tetrodes, pentodes and the like Expired GB418828A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1264833A GB418828A (en) 1933-05-01 1933-05-01 Improvements in or relating to gasfilled triodes, tetrodes, pentodes and the like
DEG87987D DE679657C (en) 1933-05-01 1934-05-03 Arrangement with gas or vapor-filled discharge vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1264833A GB418828A (en) 1933-05-01 1933-05-01 Improvements in or relating to gasfilled triodes, tetrodes, pentodes and the like

Publications (1)

Publication Number Publication Date
GB418828A true GB418828A (en) 1934-11-01

Family

ID=10008555

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1264833A Expired GB418828A (en) 1933-05-01 1933-05-01 Improvements in or relating to gasfilled triodes, tetrodes, pentodes and the like

Country Status (2)

Country Link
DE (1) DE679657C (en)
GB (1) GB418828A (en)

Also Published As

Publication number Publication date
DE679657C (en) 1939-08-11

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