GB476069A - Improvements in and relating to audio frequency amplifiers, such as those of wireless receiving sets - Google Patents
Improvements in and relating to audio frequency amplifiers, such as those of wireless receiving setsInfo
- Publication number
- GB476069A GB476069A GB2211836A GB2211836A GB476069A GB 476069 A GB476069 A GB 476069A GB 2211836 A GB2211836 A GB 2211836A GB 2211836 A GB2211836 A GB 2211836A GB 476069 A GB476069 A GB 476069A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amplifier
- relating
- those
- audio frequency
- wireless receiving
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Networks Using Active Elements (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
476,069. Impedance networks. TURNER, P. K., and HARTLEY TURNER RADIO, Ltd. Aug. 11, 1936, No. 22118. [Classes 40 (iii) and 40 (v)] A narrow band of frequencies is eliminated from an audio-frequency amplifier by balancing two equal and opposite voltages produced across an inductance L4 and a condenser C1 connected in series across the amplifier, the condenser C1 being in series with a resistance Rl across the amplifier, and the inductance L4 being coupled to an inductance L2 in series with a condenser C3 and also across the amplifier. The frequency eliminated is varied by variation of C1 and C3, which may be ganged, or by variation of Rl. Specific details of a filter for eliminating a 9000 k/sec. frequency are given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2211836A GB476069A (en) | 1936-08-11 | 1936-08-11 | Improvements in and relating to audio frequency amplifiers, such as those of wireless receiving sets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2211836A GB476069A (en) | 1936-08-11 | 1936-08-11 | Improvements in and relating to audio frequency amplifiers, such as those of wireless receiving sets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB476069A true GB476069A (en) | 1937-12-01 |
Family
ID=10174176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2211836A Expired GB476069A (en) | 1936-08-11 | 1936-08-11 | Improvements in and relating to audio frequency amplifiers, such as those of wireless receiving sets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB476069A (en) |
-
1936
- 1936-08-11 GB GB2211836A patent/GB476069A/en not_active Expired
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