GB588479A - Improvements in and relating to receivers for frequency modulated electrical oscillations - Google Patents

Improvements in and relating to receivers for frequency modulated electrical oscillations

Info

Publication number
GB588479A
GB588479A GB437645A GB437645A GB588479A GB 588479 A GB588479 A GB 588479A GB 437645 A GB437645 A GB 437645A GB 437645 A GB437645 A GB 437645A GB 588479 A GB588479 A GB 588479A
Authority
GB
United Kingdom
Prior art keywords
stages
frequency modulated
receivers
relating
line
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
GB437645A
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 PLC
Original Assignee
General Electric Co PLC
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 PLC filed Critical General Electric Co PLC
Priority to GB437645A priority Critical patent/GB588479A/en
Publication of GB588479A publication Critical patent/GB588479A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/46—Reflex amplifiers
    • H03F3/48—Reflex amplifiers with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Amplifiers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

588,479. Frequency modulation. GENERAL ELECTRIC CO., Ltd., and STENNING, L. C. Feb. 21, 1945, No. 4376. [Class 40 (v)] A reflex circuit arrangement is used with a receiver for frequency modulated waves, the dual amplification being effected preferably in one or more of the I.F. stages. V1, V2 are two H.F. stages, preferably the 1. F. amplifier. stages, followed by a limiter V3 and frequency discriminator 12 of the phase-shift type. The discriminator output is fed back through a line 15 to the input side of I.F. stage V2, and after amplification therein is taken off over line 21. to the L.F. amplifier V5 and thence to the output terminals 20. Filters 18, 19 suppress H.F. (or I.F.) oscillations in the feed-back circuit 15 and the L.F. output line 21 respectively.
GB437645A 1945-02-21 1945-02-21 Improvements in and relating to receivers for frequency modulated electrical oscillations Expired GB588479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB437645A GB588479A (en) 1945-02-21 1945-02-21 Improvements in and relating to receivers for frequency modulated electrical oscillations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB437645A GB588479A (en) 1945-02-21 1945-02-21 Improvements in and relating to receivers for frequency modulated electrical oscillations

Publications (1)

Publication Number Publication Date
GB588479A true GB588479A (en) 1947-05-22

Family

ID=9775999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB437645A Expired GB588479A (en) 1945-02-21 1945-02-21 Improvements in and relating to receivers for frequency modulated electrical oscillations

Country Status (1)

Country Link
GB (1) GB588479A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714158A (en) * 1950-08-10 1955-07-26 Hartford Nat Bank & Trust Co Radio receiver circuit with reflex means
US2979612A (en) * 1958-07-07 1961-04-11 Nova Tech Inc Electronic amplifier circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714158A (en) * 1950-08-10 1955-07-26 Hartford Nat Bank & Trust Co Radio receiver circuit with reflex means
US2979612A (en) * 1958-07-07 1961-04-11 Nova Tech Inc Electronic amplifier circuits

Similar Documents

Publication Publication Date Title
GB588479A (en) Improvements in and relating to receivers for frequency modulated electrical oscillations
GB583626A (en) Improvements in frequency modulation networks
FR2109514A6 (en)
GB929025A (en) Improvements in or relating to signal transmission systems
GB917819A (en) Improvements in or relating to receiver circuit arrangements comprising a ratio detector
JPS5250148A (en) Negative feedback amplifier circuit
GB646581A (en) Improvements in or relating to direct-current voltage amplifiers
GB796082A (en) Improved a.m. or f.m. radio receiver detector circuit
GB965016A (en) Improvements in or relating to electric modulator circuits employing transistors
GB645649A (en) Improvements relating to radio receivers for frequency-modulated waves
GB629954A (en) Improvements in circuit arrangements employing thermionic valves
GB659807A (en) Improvements in or relating to electric wave amplifiers
GB524303A (en) Improvements in photo-electric door-controlling apparatus and the like
GB1154294A (en) Branching Circuit for Composite Electrical Signals
GB1125147A (en) Improvements in or relating to travelling wave tube circuit arrangements
GB971738A (en) Improvements in or relating to d.c. amplifiers
GB685358A (en) Improvements in or relating to electric carrier wave modulators
GB172394A (en) Improvements in and relating to radio signalling systems
GB613555A (en) Improvements in or relating to signal circuit arrangements
GB654161A (en) Improvements in and relating to amplitude limiters
GB601410A (en) Improvements in or relating to thermionic valve arrangements for coupling balanced and unbalanced electric circuits
GB803620A (en) Improvements in or relating to television and sound broadcast receivers
GB1065691A (en) Improvements in or relating to d.c.electrical amplifiers employing d.c.to a.c.conversion
GB639686A (en) Improvements relating to tuning means for mixed radio receivers adapted for amplitude modulation or frequency modulation
GB619968A (en) Improvements relating to high frequency transmitting apparatus