CH250225A - Receiver for ultra-high frequency oscillations tunable over a wide frequency range. - Google Patents

Receiver for ultra-high frequency oscillations tunable over a wide frequency range.

Info

Publication number
CH250225A
CH250225A CH250225DA CH250225A CH 250225 A CH250225 A CH 250225A CH 250225D A CH250225D A CH 250225DA CH 250225 A CH250225 A CH 250225A
Authority
CH
Switzerland
Prior art keywords
ultra
receiver
high frequency
tunable over
frequency range
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH250225A publication Critical patent/CH250225A/en

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
    • H03D7/14—Balanced arrangements
    • H03D7/1416—Balanced arrangements with discharge tubes having more than two electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
    • H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
    • H03H2/008—Receiver or amplifier input circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
CH250225D 1943-10-27 1944-10-25 Receiver for ultra-high frequency oscillations tunable over a wide frequency range. CH250225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL250225X 1943-10-27

Publications (1)

Publication Number Publication Date
CH250225A true CH250225A (en) 1947-08-15

Family

ID=19781056

Family Applications (1)

Application Number Title Priority Date Filing Date
CH250225D CH250225A (en) 1943-10-27 1944-10-25 Receiver for ultra-high frequency oscillations tunable over a wide frequency range.

Country Status (7)

Country Link
US (1) US2595997A (en)
BE (1) BE459216A (en)
CH (1) CH250225A (en)
DE (1) DE862028C (en)
FR (1) FR920715A (en)
GB (1) GB638004A (en)
NL (1) NL68156C (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2011943A (en) * 1933-01-26 1935-08-20 Rca Corp Ultra short wave reception
NL58874C (en) * 1938-01-29
US2307074A (en) * 1938-09-22 1943-01-05 George E Pray Modulating circuit for high frequencies
US2382693A (en) * 1940-02-24 1945-08-14 Dallenbach Walter Oscillator-modulator circuit
US2260844A (en) * 1940-03-12 1941-10-28 Gen Electric Ultra high frequency converter
BE445613A (en) * 1941-05-19
US2479537A (en) * 1942-12-30 1949-08-16 Gen Electric Detector-oscillator circuit for ultra high frequency receivers

Also Published As

Publication number Publication date
US2595997A (en) 1952-05-06
BE459216A (en) 1946-01-05
NL68156C (en) 1951-07-16
GB638004A (en) 1950-05-31
FR920715A (en) 1947-04-16
DE862028C (en) 1953-01-08

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