GB504421A - Improvements in radio receivers or other radio frequency amplifiers provided with automatic volume control - Google Patents
Improvements in radio receivers or other radio frequency amplifiers provided with automatic volume controlInfo
- Publication number
- GB504421A GB504421A GB14547/38A GB1454738A GB504421A GB 504421 A GB504421 A GB 504421A GB 14547/38 A GB14547/38 A GB 14547/38A GB 1454738 A GB1454738 A GB 1454738A GB 504421 A GB504421 A GB 504421A
- Authority
- GB
- United Kingdom
- Prior art keywords
- radio
- fed
- volume control
- automatic volume
- diode
- 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
Abstract
504,421. Automatic volume control AGA-BALTIC RADIO AKTIEBOLAG. May 16, 1938, No. 14547. Convention date, May 15, 1937. [Class 40 (v)] To facilitate aural tuning in a radio receiver, an A.V.C. voltage is derived from the opposed outputs of two rectifiers fed front circuits of different selectivity. As shown, the signal detector diode 19 with its load resistance 21, 22 is fed from a tapping on the secondary of an I.F:transformer 18, an auxiliary rectifier 23, being fed from the primary. The load resistance 25 of the diode 23, from which A.V.C. voltages are fed over resistance 30, is connected in series with the part 22 of the load resistance of diode 19, their D.C. outputs being in opposition. Reference has been directed by the Comptroller to Specification 429,429.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE504421X | 1937-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB504421A true GB504421A (en) | 1939-04-25 |
Family
ID=20310811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14547/38A Expired GB504421A (en) | 1937-05-15 | 1938-05-16 | Improvements in radio receivers or other radio frequency amplifiers provided with automatic volume control |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB504421A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295224A (en) * | 1978-08-16 | 1981-10-13 | Sony Corporation | Tuning indicator apparatus for a frequency synthesizer tuner |
-
1938
- 1938-05-16 GB GB14547/38A patent/GB504421A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295224A (en) * | 1978-08-16 | 1981-10-13 | Sony Corporation | Tuning indicator apparatus for a frequency synthesizer tuner |
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