US1732044A - Signaling system and electron-tube circuits - Google Patents

Signaling system and electron-tube circuits Download PDF

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Publication number
US1732044A
US1732044A US737030A US73703024A US1732044A US 1732044 A US1732044 A US 1732044A US 737030 A US737030 A US 737030A US 73703024 A US73703024 A US 73703024A US 1732044 A US1732044 A US 1732044A
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US
United States
Prior art keywords
electron
grid
tube
cathode
signaling system
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Expired - Lifetime
Application number
US737030A
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English (en)
Inventor
Giroud Pierre
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Individual
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Individual
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Filing date
Publication date
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Publication of US1732044A publication Critical patent/US1732044A/en
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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
    • H03D1/16—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of discharge tubes
    • 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

Definitions

  • My invention relates to electron tubes of the double grid type and to systems in which said tubes are incorporated. My invention also re lates to methods of amplification and detec- 5 tion.
  • One of the principal objects of my invention is the provision of a double grid element tube which has a low manufacturing cost, large electron emmission and which requires a source of power of comparatively low potential for supplying the desired anode current.
  • Another object of my invention is the provision of electrical systems in which my improved double grid electron tubes are incorporated.
  • Figs. 1 and 1A are combined structural and diagrammatic representations of a preferred embodiment of my double grid electron tube.
  • Figs. 2 and 3 are schematic diagrams of preferred systems in which my electron tubes are incorporated.
  • my double grid electron tube comprises an evacuated envelopor enclosure 1, a central horizontal wire or cathode 4 of circular cross-section surrounded by an inner horizontal cylindrical grid element 2 appropriately spaced therefrom.
  • the grid element 2 in turn is sur rounded by a second horizontal cylindrical grid element 3 suitably spaced therefrom.
  • a horizontal cylindrical plate element 2 surrounds the outer grid 3 and is suitably spaced therefrom.
  • the cathode 4 is centrally positioned and the remaining electrodes are concentrically mounted with respect thereto.
  • the diameters of the cylindrical grid elements may be the same. In this case both of them may be wound in the form of a helix of the same diameter and pitch, the turns of one occupying thespaces between the turns of the other and vice-versa.
  • the ends of the inner grid element 2 are secured to spacing rods 13 and 14 which are in turn joined together by rod 12 as shown in Fig. 1A.
  • the horizontal rod 12 is suitably secured to the vertical supporting rod 5 which is embedded in the glass post 6 in which are also welded the rods for supporting the other elements of the tube.
  • the rods for supporting the various elements of the tube terminate in exterior metallic plugs 7, 8, 9, 10 and 11 for making appropriate external connections for the various elements of the tube.
  • the space charge may be substantially neutralized by applying a positive potential to one of the grid elements. This will accentuate the electected or amplified or both.
  • the plate-filament circuit comprises the source of power 11, and an oscillation responsive device 15, all connected in series as shown.
  • the inner grid element 2 may have a suitable positive potential 'bias imparted to it by connection to the X terminal of the source of power 11 shown, or by connection to any one of a suitable number of taps connected to the source of power 11.
  • a plurality of my double grid electron tubes may be connected in cascade or-one or more of my double grid electron tubes may be connected in cascade with various different types of tubes to form an amplifying system.
  • my electron tube 1" comprises a filament or cathode 4, an outer grid element 3, an inner grid element 2 and a plate or anode 2'
  • the cathode or filament 4 may be suitably heated from a source of power 10, the value source of power 11 for supplying the anode current as shown.
  • the inner grid element 2 is connected to the terminal of the source of power 11 through coil 20 and an oscillation responsive device 21,-both connected in series with each other as shown.
  • the coil 20 is inductively coupled to either the primary winding or the secondary winding of inductive coupling device 17 for effecting regeneration vto thereby regulate the degree of amplification and for causing the tube to function as an oscillation generator for autodyne reception, amplification, and detection of'oscillations if so desired.
  • a plurality of my double grid electron tubes may be connected in cascade or one or more of these tubes may be connected in cascade with'one ormore other tubes of the same vor different types in amplifying sys- J tems.
  • V 4 The combination with an electron discharge device having a cathode, an anode,

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electron Tubes For Measurement (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • X-Ray Techniques (AREA)
US737030A 1923-10-15 1924-09-11 Signaling system and electron-tube circuits Expired - Lifetime US1732044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR584276X 1923-10-15

Publications (1)

Publication Number Publication Date
US1732044A true US1732044A (en) 1929-10-15

Family

ID=31898019

Family Applications (1)

Application Number Title Priority Date Filing Date
US737030A Expired - Lifetime US1732044A (en) 1923-10-15 1924-09-11 Signaling system and electron-tube circuits

Country Status (3)

Country Link
US (1) US1732044A (fr)
FR (2) FR584276A (fr)
GB (2) GB223580A (fr)

Also Published As

Publication number Publication date
GB223580A (en) 1925-11-26
FR584276A (fr) 1925-02-03
GB226228A (en) 1926-03-15
FR29010E (fr) 1925-05-19

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