GB651945A - Improvements in or relating to circuit-arrangements for producing high-frequency oscillations - Google Patents

Improvements in or relating to circuit-arrangements for producing high-frequency oscillations

Info

Publication number
GB651945A
GB651945A GB27356/48A GB2735648A GB651945A GB 651945 A GB651945 A GB 651945A GB 27356/48 A GB27356/48 A GB 27356/48A GB 2735648 A GB2735648 A GB 2735648A GB 651945 A GB651945 A GB 651945A
Authority
GB
United Kingdom
Prior art keywords
valve
diode
grid
oscillator
circuit
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
GB27356/48A
Other languages
English (en)
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
Philips Electronics 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, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB651945A publication Critical patent/GB651945A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Valve Device For Special Equipments (AREA)
  • Generation Of Surge Voltage And Current (AREA)
  • Lasers (AREA)
GB27356/48A 1947-10-24 1948-10-21 Improvements in or relating to circuit-arrangements for producing high-frequency oscillations Expired GB651945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL135580 1947-10-24

Publications (1)

Publication Number Publication Date
GB651945A true GB651945A (en) 1951-04-11

Family

ID=19750432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27356/48A Expired GB651945A (en) 1947-10-24 1948-10-21 Improvements in or relating to circuit-arrangements for producing high-frequency oscillations

Country Status (8)

Country Link
US (1) US2557188A (fr)
BE (1) BE485428A (fr)
CH (1) CH268708A (fr)
DE (1) DE809820C (fr)
ES (1) ES185661A1 (fr)
FR (1) FR973903A (fr)
GB (1) GB651945A (fr)
NL (1) NL70313C (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199596B (de) * 1961-03-03 1965-08-26 Riegg & Co G M B H Schwingungsgenerator fuer elektronische Musikinstrumente
DE1283927B (de) * 1966-09-15 1968-11-28 Standard Elektrik Lorenz Ag Frequenzmodulierbarer Oszillator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250526A (en) * 1937-03-02 1941-07-29 Telefunken Gmbh Oscillator control circuit
US2361731A (en) * 1940-12-12 1944-10-31 Patents Res Corp Reactance system
US2321354A (en) * 1941-03-25 1943-06-08 Radio Patents Corp Electrical apparatus
US2305262A (en) * 1941-06-30 1942-12-15 Edward H Lange Method and means for normalizing thermionic oscillators
US2378245A (en) * 1942-03-17 1945-06-12 Radio Patents Corp Variable frequency oscillator

Also Published As

Publication number Publication date
BE485428A (fr)
ES185661A1 (es) 1949-04-01
NL70313C (fr)
DE809820C (de) 1951-08-02
US2557188A (en) 1951-06-19
CH268708A (de) 1950-05-31
FR973903A (fr) 1951-02-16

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