GB588479A - Improvements in and relating to receivers for frequency modulated electrical oscillations - Google Patents
Improvements in and relating to receivers for frequency modulated electrical oscillationsInfo
- 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
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.
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)
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 |
-
1945
- 1945-02-21 GB GB437645A patent/GB588479A/en not_active Expired
Cited By (2)
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 |
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