GB168947A - Improvements in and relating to methods of and means for producing alternating currents - Google Patents

Improvements in and relating to methods of and means for producing alternating currents

Info

Publication number
GB168947A
GB168947A GB1293120A GB1293120A GB168947A GB 168947 A GB168947 A GB 168947A GB 1293120 A GB1293120 A GB 1293120A GB 1293120 A GB1293120 A GB 1293120A GB 168947 A GB168947 A GB 168947A
Authority
GB
United Kingdom
Prior art keywords
coil
produced
current
electron
relating
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
GB1293120A
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
Original Assignee
General Electric Co
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 filed Critical General Electric Co
Priority to GB1293120A priority Critical patent/GB168947A/en
Publication of GB168947A publication Critical patent/GB168947A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/01—Generation of oscillations using transit-time effects using discharge tubes

Abstract

168,947. British Thomson - Houston Co., Ltd., (General Electric Co.). May 10, 1920. Thermionic oscillation generators.-In a method of producing high-frequency oscillations from direct or low-frequency pulsating current by means of a device comprising an electron-emitting cathode and an anode, the electron stream is controlled by a magnetic field produced by the current carried by the stream. In an example, a constant magnetic field, variable by the rheostat 11, is produced by the coil 9 in a thermionic tube 1, the cathode of which is connected through a choke 6, and the anode through a direct-current source 5, to an oscillatory circuit 7, 8, 13. The coil 7 is wound on the tube 1 with the coil 9, and its field produced by the electron current is superimposed on the constant field due to the coil 9. Oscillations are produced in the circuit 7, 8, 13 depending on its constants.
GB1293120A 1920-05-10 1920-05-10 Improvements in and relating to methods of and means for producing alternating currents Expired GB168947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1293120A GB168947A (en) 1920-05-10 1920-05-10 Improvements in and relating to methods of and means for producing alternating currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1293120A GB168947A (en) 1920-05-10 1920-05-10 Improvements in and relating to methods of and means for producing alternating currents

Publications (1)

Publication Number Publication Date
GB168947A true GB168947A (en) 1921-09-12

Family

ID=10013748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1293120A Expired GB168947A (en) 1920-05-10 1920-05-10 Improvements in and relating to methods of and means for producing alternating currents

Country Status (1)

Country Link
GB (1) GB168947A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209244A (en) * 1948-04-22 1965-09-28 Henry P Kalmus Device for the measurement of gas pressures including space current modulating means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209244A (en) * 1948-04-22 1965-09-28 Henry P Kalmus Device for the measurement of gas pressures including space current modulating means

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