GB540983A - Improvements in or relating to signal detecting circuit arrangements - Google Patents
Improvements in or relating to signal detecting circuit arrangementsInfo
- Publication number
- GB540983A GB540983A GB8079/40A GB807940A GB540983A GB 540983 A GB540983 A GB 540983A GB 8079/40 A GB8079/40 A GB 8079/40A GB 807940 A GB807940 A GB 807940A GB 540983 A GB540983 A GB 540983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rectifier
- valve
- load
- biased
- 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
- 230000007850 degeneration Effects 0.000 abstract 2
- 230000003321 amplification Effects 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 230000005236 sound signal Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
540,983. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 6, 1940, No. 8079. Convention date, May 6, 1939. [Class 40 (v)] A tuned circuit is connected in the space current path of a valve so as to produce degeneration and is associated with a rectifier to provide low frequency signals which are applied to the valve for amplification. Fig. 2 shows a tuned circuit 12, 13 producing degeneration and co-operating with rectifier 11 to give audio frequency voltage across load 16. The audio signal is thus applied to the grid and appears across the output load 18. A second rectifier 11<SP>1</SP> with load resistance 30 and voltage source 32 may be provided to furnish delayed A.V.C. voltages. Control grid 9 instead of being diode-biased may be biased from a separate source, Fig. 3 (not shown), or by a resistancecapacity combination 50, 51, Fig. 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US540983XA | 1939-05-06 | 1939-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB540983A true GB540983A (en) | 1941-11-07 |
Family
ID=21988792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8079/40A Expired GB540983A (en) | 1939-05-06 | 1940-05-06 | Improvements in or relating to signal detecting circuit arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB540983A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1266359B (en) * | 1966-07-08 | 1968-04-18 | Blaupunkt Werke Gmbh | Circuit for the demodulation of amplitude-modulated high-frequency oscillations |
-
1940
- 1940-05-06 GB GB8079/40A patent/GB540983A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1266359B (en) * | 1966-07-08 | 1968-04-18 | Blaupunkt Werke Gmbh | Circuit for the demodulation of amplitude-modulated high-frequency oscillations |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB540983A (en) | Improvements in or relating to signal detecting circuit arrangements | |
| GB514509A (en) | Improvements in or relating to synchronising impulse separator circuits for use in television receivers | |
| GB617647A (en) | Improvements in or relating to frequency-changing circuits | |
| GB474388A (en) | Improvements in or relating to electrical frequency dividing circuit arrangements | |
| GB453261A (en) | Improvements in or relating to circuit arrangements for suppressing disturbances in wireless receiving sets | |
| GB723061A (en) | Improvements in or relating to signal receivers | |
| US2265269A (en) | Means for suppressing disturbances in radio receiving sets | |
| GB413544A (en) | Improvements in or relating to thermionic valve circuit arrangements | |
| GB541120A (en) | Improvements relating to the modulation of magnetron oscillators | |
| GB552943A (en) | Wave amplitude limiting device for signal transmission systems | |
| GB466124A (en) | Ultra-short wave valve amplifying system | |
| GB494688A (en) | Improvements in or relating to the reduction of noise in radio receiving and similarapparatus | |
| GB476486A (en) | Improvements in or relating to radio receiving apparatus and the like | |
| GB445030A (en) | Improvements in or relating to radio and other modulated carrier wave receivers | |
| GB492398A (en) | Improvements in or relating to radio receivers | |
| GB539595A (en) | Improvements relating to telephone and like systems | |
| GB513859A (en) | Improvements in or relating to visual voltage indicators | |
| GB612536A (en) | Improvements relating to receivers for angle-modulated carrier waves | |
| GB506542A (en) | Improvements in or relating to thermionic amplifiers | |
| GB426803A (en) | Improvements in volume control in radio receivers | |
| GB443956A (en) | Improvements in and relating to radio receivers | |
| GB497396A (en) | Improvements in and relating to electrical signalling apparatus | |
| GB570772A (en) | Improvements in and relating to radio receiving circuits | |
| GB474356A (en) | Improvements in and relating to high frequency signal receiving systems | |
| GB471648A (en) | Improvements in or relating to radio receiving systems |