GB463903A - Improvements in or relating to radio receiving systems - Google Patents
Improvements in or relating to radio receiving systemsInfo
- Publication number
- GB463903A GB463903A GB11090/36A GB1109036A GB463903A GB 463903 A GB463903 A GB 463903A GB 11090/36 A GB11090/36 A GB 11090/36A GB 1109036 A GB1109036 A GB 1109036A GB 463903 A GB463903 A GB 463903A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rectifier
- amplifier
- april
- controlled
- resistance
- 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
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
- H03G3/26—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
463,903. Wireless receiving-apparatus. MANN, A. N. April 17, 1936, No. 11090. Convention date, April 18, 1935. [Class 40 (v)] Interference is prevented by means which render the signal path inoperative and include an auxiliary amplifier and rectifier operative by voltages exceeding predetermined limits. The Figure shows a signal amplifier 13 with a grid 32 controlled by the voltage across a resistance 48 in the load circuit of a rectifier 46, 47 fed by an amplifier 33. A separate rectifier may be used, Fig. 4 (not shown), and the operating threshold may be controlled by the bias potentiometer 35 or by a voltage derived for automatic volume control. Instability may be avoided by operating the valve 33 as a-frequency changer, Fig. 3 (not shown), and the time constant of resistance condenser combination 48, 49 is preferably not longer than one ten-thousandth of a second.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US463903XA | 1935-04-18 | 1935-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB463903A true GB463903A (en) | 1937-04-08 |
Family
ID=21943191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11090/36A Expired GB463903A (en) | 1935-04-18 | 1936-04-17 | Improvements in or relating to radio receiving systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB463903A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE940362C (en) * | 1941-05-01 | 1956-03-15 | Telefunken Gmbh | Arrangement for eliminating the inherent noise of a receiver containing an amplitude limiter for frequency-modulated oscillations in the absence of reception |
| DE967705C (en) * | 1951-11-23 | 1957-12-05 | Rca Corp | Noise suppression circuit for a television receiver |
| DE976373C (en) * | 1942-06-09 | 1963-07-25 | Standard Elek K Lorenz Ag | Circuit arrangement for eliminating impulse interference in high-frequency receivers |
-
1936
- 1936-04-17 GB GB11090/36A patent/GB463903A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE940362C (en) * | 1941-05-01 | 1956-03-15 | Telefunken Gmbh | Arrangement for eliminating the inherent noise of a receiver containing an amplitude limiter for frequency-modulated oscillations in the absence of reception |
| DE976373C (en) * | 1942-06-09 | 1963-07-25 | Standard Elek K Lorenz Ag | Circuit arrangement for eliminating impulse interference in high-frequency receivers |
| DE967705C (en) * | 1951-11-23 | 1957-12-05 | Rca Corp | Noise suppression circuit for a television receiver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1181124A (en) | Gain Controlled Amplifier | |
| GB457276A (en) | Improvements in or relating to thermionic valve circuit arrangements | |
| GB463903A (en) | Improvements in or relating to radio receiving systems | |
| GB689799A (en) | Operation of x-ray tubes | |
| US2645765A (en) | Abnormal voltage indicating device | |
| US2671169A (en) | Switching circuit | |
| GB941516A (en) | Improvements in voltage regulators | |
| US2926308A (en) | Transistor biasing circuit | |
| GB514073A (en) | Improvements in thermionic amplifier stages | |
| GB492263A (en) | Improvements in or relating to radio receivers and the like | |
| GB485613A (en) | Improvements in coupling systems for use in radio or like receivers | |
| GB551970A (en) | Improvements in combined carrier-signal frequency detectors and control-voltage supply systems | |
| GB653099A (en) | Improvements in and relating to valve amplifiers | |
| GB843606A (en) | System for supplying power | |
| GB536035A (en) | Improvements in volume control circuit arrangements | |
| GB542469A (en) | Improvements in or relating to tuned amplifier circuit arrangements | |
| GB471398A (en) | Improvements in or relating to high-frequency amplifying systems | |
| GB436856A (en) | Improvements in and relating to radio receivers | |
| GB580324A (en) | Improvements in or relating to thermionic amplifier circuits | |
| GB521828A (en) | Improvements in and relating to voltage-regulating apparatus | |
| GB814330A (en) | Improvements in or relating to voltage regulating devices | |
| GB457614A (en) | Automatic volume control arrangement for carrier wave receiving systems | |
| GB546703A (en) | Improvements in or relating to volume range control systems | |
| GB446671A (en) | Improvements in and relating to thermionic valve amplifiers | |
| GB889026A (en) | Improvements in or relating to voltage regulators |