US2034013A - Oscillator modulator - Google Patents

Oscillator modulator Download PDF

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Publication number
US2034013A
US2034013A US651755A US65175533A US2034013A US 2034013 A US2034013 A US 2034013A US 651755 A US651755 A US 651755A US 65175533 A US65175533 A US 65175533A US 2034013 A US2034013 A US 2034013A
Authority
US
United States
Prior art keywords
grid
circuit
cathode
oscillation
tuned
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
US651755A
Other languages
English (en)
Inventor
Harold A Wheeler
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 NL45199D priority Critical patent/NL45199C/xx
Application filed by Hazeltine Corp filed Critical Hazeltine Corp
Priority to US651755A priority patent/US2034013A/en
Priority to GB31489/33A priority patent/GB408903A/en
Priority to BE400782D priority patent/BE400782A/xx
Priority to FR766792D priority patent/FR766792A/fr
Priority to DEH7333D priority patent/DE971556C/de
Application granted granted Critical
Publication of US2034013A publication Critical patent/US2034013A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
    • H03D7/10—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes

Definitions

  • oscillator-modulator circuit which includes a multi-electrode vacuum tube having an inner pair of electrodes including a cathode, an outer pair of electrodes including an anode, and a middle electrode; an input circuit, tuned to the frequency of the current to be modulated, connected to said inner pair of electrodes; an oscillation circuit, tuned to the frequency of the modulating current, connected between one of said outer pair of electrodes and said cathode: a source of high positive potential connected to said middle electrode for isolating said input circuit from the oscillation currents; and means for providing a uniform output from said oscillation circuit as the circuits are tuned through a frequency band.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Geophysics And Detection Of Objects (AREA)
US651755A 1933-01-14 1933-01-14 Oscillator modulator Expired - Lifetime US2034013A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL45199D NL45199C (de) 1933-01-14
US651755A US2034013A (en) 1933-01-14 1933-01-14 Oscillator modulator
GB31489/33A GB408903A (en) 1933-01-14 1933-11-11 Thermionic oscillator modulator
BE400782D BE400782A (de) 1933-01-14 1934-01-09
FR766792D FR766792A (fr) 1933-01-14 1934-01-09 Oscillateur-modulateur
DEH7333D DE971556C (de) 1933-01-14 1934-01-14 Oszillator-Modulatorschaltung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US651755A US2034013A (en) 1933-01-14 1933-01-14 Oscillator modulator

Publications (1)

Publication Number Publication Date
US2034013A true US2034013A (en) 1936-03-17

Family

ID=24614104

Family Applications (1)

Application Number Title Priority Date Filing Date
US651755A Expired - Lifetime US2034013A (en) 1933-01-14 1933-01-14 Oscillator modulator

Country Status (6)

Country Link
US (1) US2034013A (de)
BE (1) BE400782A (de)
DE (1) DE971556C (de)
FR (1) FR766792A (de)
GB (1) GB408903A (de)
NL (1) NL45199C (de)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1558437A (en) * 1913-10-29 1925-10-20 Gen Electric Electrical discharge apparatus
US1199180A (en) * 1915-10-09 1916-09-26 Western Electric Co System for the transmission of intelligence.
AT87745B (de) * 1916-05-31 1922-03-27 Siemens Ag Kathodenstrahlenrelais.
FR505897A (fr) * 1916-06-21 1920-08-09 Siemens Ag Tube à vide avec fil incandescent et électrode auxiliaire servant à la commande du courant des électrons
DE383449C (de) * 1919-08-14 1923-11-08 John Scott Taggart Empfangsanordnung fuer drahtlose Wellen unter Verwendung einer Roehre mit zwei Gittern und zwei mit je einem der Gitter verbundenen Steuerkreisen
FR40726E (fr) * 1927-06-04 1932-08-22 Tube électronique et ses divers schémas de montage
BE352800A (de) * 1927-07-13
FR648810A (fr) * 1927-10-22 1928-12-14 Tube électronique et ses divers schémas de montage
FR655738A (fr) * 1927-10-22 1929-04-23 Perfectionnements aux dispositifs de changement de fréquence à tubes électroniques à plusieurs électrodes
FR670731A (fr) * 1929-03-04 1929-12-04 Radio Sonore Et Hippolyte Shap Procédé et montages pour mise en oeuvre de la méthode de réception par modulation
FR704534A (fr) * 1930-01-17 1931-05-21 Thomson Houston Comp Francaise Perfectionnements aux lampes spéclales oscillatrices changeuses de fréquence
DE655254C (de) * 1930-02-21 1938-01-12 L L Von Kramolin UEberlagerungsempfaenger mit einer Zwischenfrequenzbildung in einer Mehrgitterroehre
FR709196A (fr) * 1930-04-11 1931-08-04 Dispositif de poste à combinaisons multiples
FR726537A (fr) * 1931-01-22 1932-05-30 Radiotechnique Nouveaux modes de couplage des circuits dans les dispositifs destinés à changer lafréquence des signaux radioélectriques
DE744143C (de) * 1932-06-05 1944-01-26 Telefunken Gmbh UEberlagerungsempfaenger mit einer Mehrgitter-Mischroehre
DE653317C (de) * 1932-07-24 1937-11-20 Telefunken Gmbh Elektronenroehre mit Kathode, Anode und mindestens vier Gitterelektroden
FR684772A (fr) * 1932-07-24 1930-07-01 Perfectionnement aux appareils récepteurs radioélectriques
DE667683C (de) * 1932-10-16 1938-11-18 Telefunken Gmbh Elektronenroehre mit mindestens drei zwischen einer aeussersten Elektrode und der Kathode angeordneten Gittern

Also Published As

Publication number Publication date
DE971556C (de) 1959-02-19
FR766792A (fr) 1934-07-04
BE400782A (de) 1934-02-28
GB408903A (en) 1934-04-19
NL45199C (de)

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