GB461966A - Improvements in and relating to electric wave amplifying systems - Google Patents
Improvements in and relating to electric wave amplifying systemsInfo
- Publication number
- GB461966A GB461966A GB2357835A GB2357835A GB461966A GB 461966 A GB461966 A GB 461966A GB 2357835 A GB2357835 A GB 2357835A GB 2357835 A GB2357835 A GB 2357835A GB 461966 A GB461966 A GB 461966A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- fed
- signals
- voltage
- relating
- 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
- 238000010079 rubber tapping Methods 0.000 abstract 1
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
- Toys (AREA)
- Selective Calling Equipment (AREA)
Abstract
461,966. Valve circuits for wireless reception. BRITISH TUNGSRAM RADIO WORKS, Ltd., and REYNER, J. H. Aug. 22, 1935, No. 23578. [Class 40 (v)] A muting voltage is developed across the cathode resistance R3 of a L.F. amplifying valve Vl by including it in the anode circuit of an auxiliary valve V2, the current through which is reduced by signals of over a predetermined amplitude. The diode D, fed with H.F. signals through condenser C1, provides demodulated signals which are fed to the amplifier V1 through condenser C2 and a control bias which is fed through the filter R5, C4 to the grid of the muting valve V2. The range of control may be adjusted by varying the resistance R3 or the anode voltage of the valve V2 by moving the tapping on the voltage divider R6. Reference has been directed by the Comptroller to Specification 436,856.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2357835A GB461966A (en) | 1935-08-22 | 1935-08-22 | Improvements in and relating to electric wave amplifying systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2357835A GB461966A (en) | 1935-08-22 | 1935-08-22 | Improvements in and relating to electric wave amplifying systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB461966A true GB461966A (en) | 1937-02-22 |
Family
ID=10197944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2357835A Expired GB461966A (en) | 1935-08-22 | 1935-08-22 | Improvements in and relating to electric wave amplifying systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB461966A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639375A (en) * | 1949-04-30 | 1953-05-19 | Rca Corp | Tuning aid for high fidelity radio receiving systems and the like |
-
1935
- 1935-08-22 GB GB2357835A patent/GB461966A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639375A (en) * | 1949-04-30 | 1953-05-19 | Rca Corp | Tuning aid for high fidelity radio receiving systems and the like |
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