GB1250545A - - Google Patents

Info

Publication number
GB1250545A
GB1250545A GB1250545DA GB1250545A GB 1250545 A GB1250545 A GB 1250545A GB 1250545D A GB1250545D A GB 1250545DA GB 1250545 A GB1250545 A GB 1250545A
Authority
GB
United Kingdom
Prior art keywords
inductor
march
varactors
heading
resistors
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
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 filed Critical
Publication of GB1250545A publication Critical patent/GB1250545A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

1,250,545. Frequency controlled oscillators. INTERNATIONAL STANDARD ELECTRIC CORP. 12 March, 1969 [18 March, 1968], No. 13027/69. Heading H3R. The tuned circuit of an oscillator in a superheterodyne receiver comprises varactors D1, D2, capacitor C and inductor L and has the diode bias supply connected between a tap on the inductor and a pair of resistors R1, R2 associated with varactors D1, D2 respectively.
GB1250545D 1968-03-18 1969-03-12 Expired GB1250545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681616515 DE1616515B2 (en) 1968-03-18 1968-03-18 CIRCUIT ARRANGEMENT FOR THE OSCILLATOR CIRCUIT OF AN OVERLAY RECEIVER

Publications (1)

Publication Number Publication Date
GB1250545A true GB1250545A (en) 1971-10-20

Family

ID=5682200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250545D Expired GB1250545A (en) 1968-03-18 1969-03-12

Country Status (3)

Country Link
DE (1) DE1616515B2 (en)
FR (1) FR2004160A1 (en)
GB (1) GB1250545A (en)

Also Published As

Publication number Publication date
DE1616515A1 (en) 1971-04-29
DE1616515B2 (en) 1973-07-12
FR2004160A1 (en) 1969-11-21

Similar Documents

Publication Publication Date Title
GB1124266A (en) Modular integrated electronics radar
GB1121439A (en) Electronic tunable oscillator circuit
GB1526338A (en) Superheterodyne receivers
GB1100751A (en) Improvements in or relating to tuning arrangements
GB1250545A (en)
GB1264136A (en)
ES419945A1 (en) Uhf varactor tuner having a chassis of unitary construction
GB1168848A (en) Voltage Tuned Oscillator
JPS56120203A (en) Controllable oscillator in frequency by current change
GB1124276A (en) Angle modulated wave demodulating circuits
GB1094867A (en) Improvements in or relating to radio transmitters
GB802104A (en) Improvements relating to transistor oscillator circuits
GB1424467A (en) Automatic frequency control circuits
GB1098420A (en) Improvements in or relating to electric oscillators
GB1251417A (en)
GB1404886A (en) Phase shifting circuit
GB1042655A (en) Oscillator circuit
GB1126030A (en) Improvements in or relating to frequency demodulators
JPS55149509A (en) Uhf high frequency amplifying circuit
FR2336826A1 (en) Transistor oscillator tunable over wide frequency range - operates in VHF and UHF range and uses feedback impedance between transistor emitter and collector
GB1078833A (en) Improvements in parametric frequency-multiplier circuits
GB1141755A (en) Frequency controlled quartz oscillator
GB1123038A (en) Circuit arrangement for electronic tuning of an oscillator circuit
GB979209A (en) Improvements in superheterodyne receiver mixing circuits
GB1159424A (en) Improvements in and relating to Frequency Multipliers

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees