US1699146A - Electron-discharge device - Google Patents

Electron-discharge device Download PDF

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Publication number
US1699146A
US1699146A US592158A US59215822A US1699146A US 1699146 A US1699146 A US 1699146A US 592158 A US592158 A US 592158A US 59215822 A US59215822 A US 59215822A US 1699146 A US1699146 A US 1699146A
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United States
Prior art keywords
electrode
anode
source
serve
alternating current
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 - Lifetime
Application number
US592158A
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English (en)
Inventor
Albert W Hull
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
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Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to US592158A priority Critical patent/US1699146A/en
Priority to US654248A priority patent/US1655270A/en
Priority to GB21183/23A priority patent/GB205058A/en
Priority to FR570878D priority patent/FR570878A/fr
Priority to FR29396D priority patent/FR29396E/fr
Priority to GB17901/24A priority patent/GB219705A/en
Application granted granted Critical
Publication of US1699146A publication Critical patent/US1699146A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits
    • H04B1/1623—Supply circuits using tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/82—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

Definitions

  • My present invention relates to electron discharge devices and the manner in which such devices may be conveniently operated.
  • the object of my invention is to provide an electron discharge device and a circuit arrangement therefor whereby it will be possible to supply all otentials for the operation of the device rom an alternating current source.
  • a more specific object of my invention is to eliminate the necessity of this separate rectifier and to provide a self-contained device certain of the electrodes of which will function to rectify the alternating current for the plate supply, and other electrodes will'perform the usual functions of the three electrode device.
  • Figs. 1 and 2 show diagrammatically two forms of radio receiving circuits with which my device may be employed.
  • Fig. 3 shows'in perspective with some of the parts broken away one form of device constructed in accordance with my invention, and Fi 4 is a cross-sectional view of the electrodes in a modified form.
  • the device as indicated in Fig. 3 comprises an evacuated receptacle 1, containing a filamentary electrode 2 the ends of which are connected to the leading-in conductors 3 and 4-.
  • a filamentary electrode 2 Surrounding this filamentary electrode there is a cylindrical electrode 5, the outer surface of which is preferably coated with some thermionically active material, so that the outer surface will emit electrons at a relatively low temperature in comparison with the inner surface.
  • This electrode is connected to and supported from leading-in conductor 6.
  • Electrode 5 is in turn surrounded by grid electrode 7 which is connected to the leading-in conductor 8.
  • Grid electrode 7 in turn is surrounded by cylinback to that terminal.
  • drical anode 9 which is supported by arms 1 10 and 11 and is connected to leading-1n conductor 12.
  • a source of alternating current such for example as the secondary 13 of a transformer may be provided.
  • a portion of the secondary turns of the transformer are connected with the filamentary electrode 2 for heating the same.
  • the surrounding electrode 5 will be heated either by radiation or by bombardment to such a temperature that the outer surface thereof will emit electrons for supplying the space current for the device.
  • the outer surface of electrode 5 is adapted to serve as cathode in conjunction with the anode 9.
  • the inner surface of the electrode 5 is adapted to act as anode in conjunction with the electrode 2 to rectify the alternating current supplied by source 13.
  • One terminal of the source 13 is connected through resistances 14 to the anode 9.
  • Condensers 15 connected between resistances 14 and the electrode 5 serve in conjunction with these resistances to smooth out fluctuations of the current supply to the plate circuit.
  • the apparatus is capable of furnishing continuously a direct current across the evacuated space between the electrode 5 and the anode 9, and this current is supplied by reason of the rectifying action between electrodes 2 and 5.
  • Fig. 4 a modified electrode structure which is adapted to be used in cases where it is desired to employ the full voltage of the alternating current source, such for example, as the voltage of the ordinary lighting circuit for the heating of the filamentary electrode 2.
  • the filamentary electrode 2 as shown in Fig. 4 is made in the form of a coiled filament with supporting arms 17, 18, and 19.
  • the electrode 5 is preferably provided with a flange 20 to revent electrons emitted from the outer surface thereof finding their way to the filament supports, and also to shield the ath of the electrons from the electrostatic elds produced by electrode 2 and its supports.
  • the middle filament support 18 as connected to a leading-in conductor 21.
  • the device may be employed for rectifying both half waves of the alternating current supply. The manner in which the circuit connections would be made in this case is indicated at the right of Fig. 4.
  • a device such as that described is connected to an ordinary lamp socket it may be desired to employ the lighting circuit as a receiving antenna.
  • the manner in which this may be done is indicated in Fig. 2.
  • some point in the lighting circuit will be grounded as for example the mid point of the secondary of transformer 22 which supplies current to the house lighting circuits as indicated in Fig. 2.
  • the portion of the lighting circuit between this ground and the lamp socket may be used as a receiving antenna by connecting electrode 5 through inductance 23 and variable capac ity 24.- to ground at 25 and connecting grid 7 to point 26 as indicated.
  • electrode 5 will have impressed thereon substantiall the full high frequency potential of the ighting circuit.
  • Regenerative amplification may be obtained by means of a feed back coil 27 connected in the plate circuit and coupled to inducance 23.
  • the electrode 5 as before stated is preferably so constructed that in the course of normal operation it will not emit electrons from the inner surface, this condition is not essential in all cases.
  • satisfactory operation may be obtained if the electrode 2 emits enough more electrons than the inner surface of electrode 5 to provide by the excess suiticient plate current.
  • an electron discharge device comprising an electrode which is adapted to be heated, an electrode surrounding said first electrode and adapted to serve as a cathode, a control electrode and an anode, and an electrical circuit connected between said first electrode and said anode, said circuit including an alternating current source havin one terminal connected to said first electro e and its other terminal connected to said anode, said source of alternating current constituting the sole source of current su ply for said circuit.
  • An e ectron discharge device comprising a filamentary electrode, a second metallic electrode surroundin said first electrode and having its outer surface adapted to emit electrons at a relatively low temperature compared with its inner surface, a control electrode outside said second electrode and an anode outside said control electrode, a source of alternating current connected to said filamentary electrode for heating the same and a connection between a selected point on said source and said anode.
  • An electron discharge apparatus comprising an electrode adapted to be heated, a second metallic electrode surrounding said first electrode, a control electrode outside of said second electrode, and an anode outside of said control electrode, said second electrode being connected in a circuit arrangement to serve as anode in cooperation with said first electrode and to serve as cathode in cooperation with said anode, a source of alternating current connected to said first electrode for heating the same, and circuit connections whereby said first two electrodes serve to rectify alternating current derived from said source and thereby cause said alternating current to be rectified and as rectified to flow in the path through the device between the second electrode and the anode.
  • An electron discharge device comprising a filamentary electrode, a second metallic electrode surrounding said first electrode and having its outer surface adapted to emit electrons at a relatively low temperature compared with its inner surface and an anode outside of said second electrode, a source of alternating current. connected to said filamentary electrode for heating the same and a connection between a selected point on said source and said anode.
  • An electron discharge apparatus comprising an electrode adapted to be heated, a second metallic electrode surrounding said first electrode, and an anode outside of said second electrode, said second electrode being connected in a circuit arrangement to serve as anode in cooperation with said first electrode and to serve as cathode in cooperation with said anode, a source of alternating current connected to said first electrode for heating the same, and circuit connections whereby said first two electrodes serve to rectify alternating current derived from said source and thereby cause said alternating current to be rectified and as rectified to flow in the path through the device between the second electrode and the anode.
  • G The combination of an electron discharge device comprising adapted to be heated, a second electrode adjacent thereto which is connected to serve as a cathode and a cooperatin anode, and an electric circuit connected between said first electrode and said anode, said circuit including an alternating current source having one terminal connected to said first electrode and its other terminal connected to said anode, said source of alternating current constituting the sole source of current supply for said circuit.
  • an electron dis. charge device comprising an electrode adapted to be heated, three electrodes sur rounding said first electrode, one of which is connected to serve as cathode, and asecend of which is connected to serve as anode in conjunction with said cathode, and the third of which is connected to serve as control electrode, a source of alternatin current connected to said first electro e for heating it to incandescence, and a connection an electrode between a selected oint on saidsource and one of'said surroun ing electrodes, said connection being so made that the first electrode and one of the surrounding electrodes serve to rectify'current derived from said source and thereby cause said alternating current to be rectified and as rectified to flow in a Eath through the device which includes the ot or two electrodes.
  • An electron discharge apparatus comprising an electrode adapted to be heated by the passage of current, a second electrode adjacent thereto having a surface remote from the first electrode adapted to emit electrons at a relatively low temperature compared with its surface adjacent said first electrode, an anode located to receive electrons from said second cathode, a source of alternating current connected to said first electrode for heating the same, and a connection from a selected point on said source to said anode.
  • An electron discharge apparatus comprising an electrode adapted to be heated by the passage of current, a second electrode adjacent thereto and an anode located to receive electrons from the second electrode, said second electrode being connected to serve as anode in cooperation with said first electrode andto serve as cathode in cooperation with said anode, a source of alternating current connected to said first electrode for heating the same and circuit connections whereby said first two electrodes serve to rectify alternating current, derived from said source and thereby cause said alternating current to be rectified, and as rectified to flow in a path through the device which includes the anode.
  • An electron discharge device comprising an electrode adapted to be heated, a second electrode adjacent thereto having a surface remote from said electrode adapted to emit electrons at a relatively low temperature compared with its surface adjacent said first electrode, and an anode located to receive electrons from said second electrode, a
  • source of alternating current connected to said first electrode for heating the same to produce an emission of electrons therefrom and a connection from a selected point on said source to said anode.
  • an electron discharge device comprising an electrode ada ted to be heated and three other electro es, one of which is connected to serve as a serve as anode in conjunction with said cathode, and'the third ofwhich is adapted to serve as control electrode, a source of alternating current connected to said first electrode for heating'thc same to produce an emission of electrons therefrom and a connection between a selected point on said source and one of said other electrodes, said lOO cathode, a second of which is connected to connection being so made that the electrode adapted to be heated and one of the other electrodes serve to rectify current derived from said source and thereby cause said alternating current to be rectified and as rectified to flow in a path through the device which includes the other two electrodes.
  • an electron discharge device comprising a cathode adapted to be heated and at least two other electrodes one of which is connected to serve as a cathode and a second of which is connected to serve as an anode in conjunction with said cathode, a source of alternating current connected to said first named electrode for heating it to produce an emission of electrons therefrom and a connection between a selected point on said source and one of said other electrodes, said connection being so made that the heated electrode and one of the other electrodes serve to rectify current derived from said source and thereby cause said alternating current to be rectified, and as-rectified to flow in a path throughthe device which includes the second of the other electrodes.
  • An electron discharge apparatus comprising amplifying means and rectifying means in a unitary device, said amplifying means having a cathode which is connected to serve as an anode for the rectifying means, a source of alternating current and means for connecting said source to the apparatus in such a way that the rectif ing means serves to rectify the current said source and supply unidirectional rent to the amplifying means.
  • An electron discharge apparatus comprising amplifying means and thermionic rectifying means in a unitary device, said amplifying means having acathode which is adapted to serve as an anode for the rectifying means, a source of alternating current for-supplying heating current for the operation of the rectifying means and means rom for connecting said source to the apparatus in such a Way that the rectifying means serves to rectify the current from said source and supply unidirectional current to the amplifying means.
  • An electron discharge apparatus comprising an electrode adapted to be heated, a
  • An electron discharge apparatus comprising an electrode adapted to be heated, a second electrode adjacent thereto and an anode located adjacent said second electrode so as to receive electrons from said second electrode, said second electrode being adapted to serve as anode in cooperation with said I first electrode and to serve as cathode in cooperation with said anode, a source of alternating currentconnected to said first electrode for heating the same and a connection from a selected point on said source to said anode through an impedance which permits the passage of direct current and to said second electrode through a capacity, said connections serving to cause alternating current from said source to be rectified and as rectified to flow in the path through the device between the second electrode and the anode as a continuous direct current.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Discharge Lamp (AREA)
  • Electron Sources, Ion Sources (AREA)
US592158A 1922-10-03 1922-10-03 Electron-discharge device Expired - Lifetime US1699146A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US592158A US1699146A (en) 1922-10-03 1922-10-03 Electron-discharge device
US654248A US1655270A (en) 1922-10-03 1923-07-27 Electron-discharge apparatus
GB21183/23A GB205058A (en) 1922-10-03 1923-08-21 Improvements in and relating to electron discharge devices and circuit arrangements therefor
FR570878D FR570878A (fr) 1922-10-03 1923-09-18 Perfectionnements aux tubes à décharge électronique et à leur mode d'emploi
FR29396D FR29396E (fr) 1922-10-03 1924-07-25 Perfectionnements aux tubes à décharge électronique et à leur mode d'emploi
GB17901/24A GB219705A (en) 1922-10-03 1924-07-26 Improvements in electron discharge devices and circuit arrangements therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US592158A US1699146A (en) 1922-10-03 1922-10-03 Electron-discharge device

Publications (1)

Publication Number Publication Date
US1699146A true US1699146A (en) 1929-01-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
US592158A Expired - Lifetime US1699146A (en) 1922-10-03 1922-10-03 Electron-discharge device

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US (1) US1699146A (fr)
FR (1) FR570878A (fr)
GB (1) GB205058A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552047A (en) * 1949-04-19 1951-05-08 Rca Corp Electron discharge device with temperature-stabilized cathode
US2774916A (en) * 1951-06-09 1956-12-18 Siemens Ag Cathodes for electrical discharge devices
US2916668A (en) * 1955-07-01 1959-12-08 Research Corp Heat stabilized field emission electron sources
WO2019050871A1 (fr) * 2017-09-05 2019-03-14 Avery Dennison Corporation Adhésifs à motifs et constructions stratifiées avec des adhésifs à motifs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552047A (en) * 1949-04-19 1951-05-08 Rca Corp Electron discharge device with temperature-stabilized cathode
US2774916A (en) * 1951-06-09 1956-12-18 Siemens Ag Cathodes for electrical discharge devices
US2916668A (en) * 1955-07-01 1959-12-08 Research Corp Heat stabilized field emission electron sources
WO2019050871A1 (fr) * 2017-09-05 2019-03-14 Avery Dennison Corporation Adhésifs à motifs et constructions stratifiées avec des adhésifs à motifs

Also Published As

Publication number Publication date
FR570878A (fr) 1924-05-08
GB205058A (en) 1924-11-21

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