FR894004A - Assembly intended to amplify or transform the frequency of electrical oscillations - Google Patents

Assembly intended to amplify or transform the frequency of electrical oscillations

Info

Publication number
FR894004A
FR894004A FR894004DA FR894004A FR 894004 A FR894004 A FR 894004A FR 894004D A FR894004D A FR 894004DA FR 894004 A FR894004 A FR 894004A
Authority
FR
France
Prior art keywords
amplify
transform
frequency
electrical oscillations
assembly intended
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
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR894004A publication Critical patent/FR894004A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • H03F1/28—Modifications of amplifiers to reduce influence of noise generated by amplifying elements in discharge-tube amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
FR894004D 1942-04-16 1943-04-14 Assembly intended to amplify or transform the frequency of electrical oscillations Expired FR894004A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL245848X 1942-04-16
NL2486076X 1943-02-23

Publications (1)

Publication Number Publication Date
FR894004A true FR894004A (en) 1944-12-12

Family

ID=32232797

Family Applications (2)

Application Number Title Priority Date Filing Date
FR894004D Expired FR894004A (en) 1942-04-16 1943-04-14 Assembly intended to amplify or transform the frequency of electrical oscillations
FR53342D Expired FR53342E (en) 1942-04-16 1944-02-21 Assembly intended to amplify or transform the frequency of electrical oscillations

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR53342D Expired FR53342E (en) 1942-04-16 1944-02-21 Assembly intended to amplify or transform the frequency of electrical oscillations

Country Status (6)

Country Link
US (1) US2486076A (en)
BE (1) BE450187A (en)
CH (1) CH245848A (en)
FR (2) FR894004A (en)
GB (1) GB613681A (en)
NL (1) NL60694C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081514B (en) * 1957-02-05 1960-05-12 Deutsche Bundespost Broadband amplifier stage

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE484347A (en) * 1947-08-14
BE484503A (en) * 1947-08-25
US2662939A (en) * 1949-04-02 1953-12-15 Nowak Karl High selectivity amplifier
US2659776A (en) * 1949-05-13 1953-11-17 Nowak Karl Selective receiving and amplifying circuit
US2662172A (en) * 1950-02-21 1953-12-08 Sperry Prod Inc Oscillator cancellation frequency converter
US2713118A (en) * 1951-05-04 1955-07-12 Robert W Hart Communication system
US2963660A (en) * 1954-04-02 1960-12-06 Northrop Corp Signal frequency converter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB509398A (en) * 1937-12-14 1939-07-14 James Robinson Improvements in retroactive valve apparatus
US2227604A (en) * 1938-01-29 1941-01-07 Rca Corp Ultra high frequency device
US2256067A (en) * 1938-05-27 1941-09-16 Rca Corp Receiver selectivity control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081514B (en) * 1957-02-05 1960-05-12 Deutsche Bundespost Broadband amplifier stage

Also Published As

Publication number Publication date
GB613681A (en) 1948-12-01
NL60694C (en)
CH245848A (en) 1946-11-30
BE450187A (en)
US2486076A (en) 1949-10-25
FR53342E (en) 1945-10-16

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