GB492263A - Improvements in or relating to radio receivers and the like - Google Patents
Improvements in or relating to radio receivers and the likeInfo
- Publication number
- GB492263A GB492263A GB7258/37A GB725837A GB492263A GB 492263 A GB492263 A GB 492263A GB 7258/37 A GB7258/37 A GB 7258/37A GB 725837 A GB725837 A GB 725837A GB 492263 A GB492263 A GB 492263A
- Authority
- GB
- United Kingdom
- Prior art keywords
- normal
- diode
- march
- auxiliary
- anode circuit
- 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
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
Landscapes
- Circuits Of Receivers In General (AREA)
- Amplifiers (AREA)
Abstract
492,263. Wireless receiving circuits. TELEFUNKEN GES. FUR. DRAHTLOSE TELEGRAPHIE. March 12, 1937, No. 7258. Convention date, March 12, 1936. [Class 40 (v)] In a receiver provided with delayed A.V.C. a visual tuning indicator is made operative on signals too weak to render the normal A.V.C. operative by connecting it in the anode circuit of a valve subject to an auxiliary A.V.C. system. The normal A.V.C. diode 12 derives its delay bias voltage from the resistance 13 in the cathode return of the double diode triode 11 and applies its control voltage to the frequency changer 2. The auxiliary A.V.C. diode 15 has no delay and controls the I.F. amplifier 3 only, in the anode circuit of which is the tuning indicator 7. The degree of control applied from 15 to valve 3 is substantially less than that applied over the normal A.V.C. channel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE492263X | 1936-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB492263A true GB492263A (en) | 1938-09-12 |
Family
ID=6544383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7258/37A Expired GB492263A (en) | 1936-03-12 | 1937-03-12 | Improvements in or relating to radio receivers and the like |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2159803A (en) |
| GB (1) | GB492263A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2503900A (en) * | 1943-12-29 | 1950-04-11 | Gen Electric | Automatic gain control system |
| US2427691A (en) * | 1944-07-26 | 1947-09-23 | Arthur C Prichard | Noise reducing in pulse reception |
| US2644083A (en) * | 1945-02-27 | 1953-06-30 | Us Sec War | Instantaneous automatic gain control circuit |
| US2559038A (en) * | 1949-08-01 | 1951-07-03 | Avco Mfg Corp | Line pulse keyed automatic gain control circuit with control voltage delay |
| BE551962A (en) * | 1955-10-21 |
-
1937
- 1937-03-10 US US130082A patent/US2159803A/en not_active Expired - Lifetime
- 1937-03-12 GB GB7258/37A patent/GB492263A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2159803A (en) | 1939-05-23 |
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