GB899096A - Improvements in power conserving mixer and oscillator - Google Patents

Improvements in power conserving mixer and oscillator

Info

Publication number
GB899096A
GB899096A GB2850359A GB2850359A GB899096A GB 899096 A GB899096 A GB 899096A GB 2850359 A GB2850359 A GB 2850359A GB 2850359 A GB2850359 A GB 2850359A GB 899096 A GB899096 A GB 899096A
Authority
GB
United Kingdom
Prior art keywords
oscillator
mixer
transistor
circuit
capacitor
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
GB2850359A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB899096A publication Critical patent/GB899096A/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
    • H03D7/12—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices 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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A

Abstract

899,096. Transistor oscillator mixer circuits. GENERAL ELECTRIC CO. Aug. 20, 1959 [Aug. 21, 1958], No. 28503/59. Class 40(6). An oscillator-mixer circuit comprises a mixer transistor connected in series with an oscillator transistor across a D.C. supply with the common point of the transistors connected through a circuit having a low impedance at signal frequencies to one terminal of the supply the input signal and the output terminal of the oscillator being connected to an input terminal of the mixer. In the Figure a crystal oscillator transistor circuit 24 is connected in series with a transistor mixer 20 and an IF tuned circuit 18 feeding the IF amplifier 17, the common point 34 being earthed through a capacitor 32. A sgnal from the input and RF stages 12 of a radio receiver is applied through a capacitor to the base of the mixer transistor 20 together with a local oscillation derived through a capacitor 38 from the emitter of the oscillator transistor.
GB2850359A 1958-08-21 1959-08-20 Improvements in power conserving mixer and oscillator Expired GB899096A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7563658A 1958-08-21 1958-08-21

Publications (1)

Publication Number Publication Date
GB899096A true GB899096A (en) 1962-06-20

Family

ID=22127061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2850359A Expired GB899096A (en) 1958-08-21 1959-08-20 Improvements in power conserving mixer and oscillator

Country Status (1)

Country Link
GB (1) GB899096A (en)

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