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GB366053A - Improvements in and relating to the production and/or modulation of electric currents - Google Patents

Improvements in and relating to the production and/or modulation of electric currents

Info

Publication number
GB366053A
GB366053A GB2205530A GB2205530A GB366053A GB 366053 A GB366053 A GB 366053A GB 2205530 A GB2205530 A GB 2205530A GB 2205530 A GB2205530 A GB 2205530A GB 366053 A GB366053 A GB 366053A
Authority
GB
United Kingdom
Prior art keywords
jet
resistance
cathode
screen
record
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
GB2205530A
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.)
Individual
Original Assignee
Individual
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
Priority to GB362029A priority Critical patent/GB328680A/en
Application filed by Individual filed Critical Individual
Priority to GB2205530A priority patent/GB366053A/en
Priority to FR720249D priority patent/FR720249A/en
Publication of GB366053A publication Critical patent/GB366053A/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
    • H03B13/00—Generation of oscillations using deflection of electron beam in a cathode-ray tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H01J31/04—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with only one or two output electrodes with only two electrically independant groups or electrodes

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

366,053. Producing, rectifying, or modulating alternating currents. HARRIES, J. H. 0., Shirley, Old Road, Frinton-on-Sea. July 22, 1930, No. 22055. Addition to 328,680, [Class 39 (i), Electric lamps, Arc &c.]. [Classes 39 (i) and 40 (v).] A cathode-ray tube is made to act as a modulator, amplifier, rectifier or generator of electric currents. According to the parent Specification a cathode ray is caused by the input currents to oscillate in one or two dimensions while impinging on a " record " so constructed as to vary the current in the output circuit, which includes the electron stream. The record may constitute either an electrode, which may be fluorescent, or a screen. According to the present invention the record is of a non-periodic character. The jet, which is " saturated" and may be of circular or strip-shaped cross section, may impinge on an electrode 8, Fig. 2b, after passing through a screen 9 having a triangular aperture, the current being varied by movement of the cathode jet relative to the screen. The screen may consist of thin nickel sheet and may have a rectangular or circular aperture or present a straight edge (Figs. 2a, c, d, not shown). Alternatively the jet may impinge on and move in relation to a resistance member 42 or 43, Fig. 5, which may consist of a sputtered metal film and may have a centre tapping as at 14 (Figs. 2e, f, not shown). This member may have lateral extensions 20, Fig. 2g, to permit of double variation of current strength by movement of the jet in two dimensions ; or a straight-edge screen 18, Fig. 2h, may be used in conjunction with a resistance member 42 for the same purpose. Inductance or capacity may be used instead of resistance. In Fig. 5 the first cathode-ray tube 30 acts as an amplifier, bv variation of the fraction of resistance 42 included in circuit with the cathode ray. Tube 31 acts as a rectifier, the ends of resistance 43 being connected together so that the output voltage depends on the distance from the centre-tapping 14 at which the jet 36 impinges on the resistance 43. The input and output circuits may be arranged to produce a negative-resistance effect. For modulation, the jet may be caused to move over a twodimensional " record by means of two pairs of deflecting electrodes arranged at rightangles to one another, the carrier oscillations being applied to one pair and the modulating oscillations to the other. The tubes may have internal metallic deposit on their walls, internal collector electrodes, electrostatic screens, or fluorescent screens, and may contain more than one cathode jet.
GB2205530A 1930-07-22 1930-07-22 Improvements in and relating to the production and/or modulation of electric currents Expired GB366053A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB362029A GB328680A (en) 1930-07-22 1929-02-04 Improvements in and relating to the production and/or modulation of periodic electric currents
GB2205530A GB366053A (en) 1930-07-22 1930-07-22 Improvements in and relating to the production and/or modulation of electric currents
FR720249D FR720249A (en) 1930-07-22 1931-07-10 Method and apparatus for transmitting electric currents by means of a relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2205530A GB366053A (en) 1930-07-22 1930-07-22 Improvements in and relating to the production and/or modulation of electric currents

Publications (1)

Publication Number Publication Date
GB366053A true GB366053A (en) 1932-01-22

Family

ID=10173165

Family Applications (2)

Application Number Title Priority Date Filing Date
GB362029A Expired GB328680A (en) 1930-07-22 1929-02-04 Improvements in and relating to the production and/or modulation of periodic electric currents
GB2205530A Expired GB366053A (en) 1930-07-22 1930-07-22 Improvements in and relating to the production and/or modulation of electric currents

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB362029A Expired GB328680A (en) 1930-07-22 1929-02-04 Improvements in and relating to the production and/or modulation of periodic electric currents

Country Status (2)

Country Link
FR (1) FR720249A (en)
GB (2) GB328680A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750161C (en) * 1936-04-29 1944-12-18 Marconi Wireless Telegraph Co Cathode ray tube
US2477547A (en) * 1945-01-03 1949-07-26 Bendix Aviat Corp Modulation of radio-frequency oscillations
DE760306C (en) * 1935-07-06 1954-08-23 Siemens Schuckertwerke A G Automatic electrical control device, in particular fine control by means of a movable cathode beam

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767991C (en) * 1933-11-16 1955-05-05 Siemens App Device for generating short-term electrical impulses
FR809061A (en) * 1935-11-13 1937-02-23 Improvements to very high frequency current generators
DE767625C (en) * 1935-11-27 1953-03-23 Lorenz C Ag Arrangement for distance measurement by means of reflected pulses
DE756425C (en) * 1936-09-14 1952-04-17 Rca Corp Modulation arrangement
DE767357C (en) * 1936-11-18 1952-06-13 Lorenz A G C Arrangement for distance measurement according to the pulse reflection principle
DE757911C (en) * 1940-01-23 1953-11-02 Siemens & Halske A G Arrangement for the generation of ultra-short waves
US2421248A (en) * 1941-05-10 1947-05-27 Allen B Dumont Lab Inc Method of and apparatus for determining absolute altitude
US2422937A (en) * 1943-12-03 1947-06-24 Rauland Corp Tube for color television
US2528020A (en) * 1945-07-24 1950-10-31 Philco Corp Mask controlled feedback system for cathode-ray tubes
US2743390A (en) * 1951-06-04 1956-04-24 Harold E Renfro Frequency control apparatus
DE969769C (en) * 1952-12-17 1958-07-17 Siemens Ag Electron beam switch tubes, preferably for coding purposes
US2974274A (en) * 1955-12-13 1961-03-07 Lindberg Secondary-emission cathode-ray tube and engine analyzer employing the same
US2974295A (en) * 1956-05-02 1961-03-07 Rydbeck Olof Erik Hans Frequency addition and subtraction by means of auxiliary deflection electrodes in a cathode ray tube
DE1120612B (en) * 1959-07-17 1961-12-28 Philips Nv Electron beam tube for the optical reproduction of characters
DE1154881B (en) * 1959-07-24 1963-09-26 Bbc Brown Boveri & Cie Device for deep irradiation with fast electrons

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE760306C (en) * 1935-07-06 1954-08-23 Siemens Schuckertwerke A G Automatic electrical control device, in particular fine control by means of a movable cathode beam
DE750161C (en) * 1936-04-29 1944-12-18 Marconi Wireless Telegraph Co Cathode ray tube
US2477547A (en) * 1945-01-03 1949-07-26 Bendix Aviat Corp Modulation of radio-frequency oscillations

Also Published As

Publication number Publication date
FR720249A (en) 1932-02-17
GB328680A (en) 1930-05-05

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