GB835307A - Improvements in and relating to variable electrical attenuators - Google Patents
Improvements in and relating to variable electrical attenuatorsInfo
- Publication number
- GB835307A GB835307A GB1697357A GB1697357A GB835307A GB 835307 A GB835307 A GB 835307A GB 1697357 A GB1697357 A GB 1697357A GB 1697357 A GB1697357 A GB 1697357A GB 835307 A GB835307 A GB 835307A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bridge
- diagonal
- relating
- variable electrical
- control signal
- 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
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/02—Remote control of amplification, tone or bandwidth
Landscapes
- Amplifiers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
835,307. Automatic volume control. BRITISH BROADCASTING CORPORATION. May 28, 1958 [May 28, 1957], No. 16973/57. Class 40 (4). A signal is applied across one diagonal and is taken from across the other diagonal of a bridge R the balance of which is controlled by a bridge M of non-linear resistors one diagonal of which shunts an arm of bridge R and the other diagonal of which is subject to a control signal. Use of the bridge M prevents the control signal appearing in the bridge R and prevents voltage fed back from the bridge R altering the impedance shunt. The output from bridge R is applied between the high-resistance cathode and grid connections of amplifier V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1697357A GB835307A (en) | 1957-05-28 | 1957-05-28 | Improvements in and relating to variable electrical attenuators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1697357A GB835307A (en) | 1957-05-28 | 1957-05-28 | Improvements in and relating to variable electrical attenuators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB835307A true GB835307A (en) | 1960-05-18 |
Family
ID=10086944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1697357A Expired GB835307A (en) | 1957-05-28 | 1957-05-28 | Improvements in and relating to variable electrical attenuators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB835307A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3311840A (en) * | 1964-05-27 | 1967-03-28 | Rolf S Gillard | Bridge type circuit for controlling the gain of a transistor amplifier |
| DE1297155B (en) * | 1966-07-20 | 1969-06-12 | Siemens Ag | Contactless controllable damping element |
| US3533006A (en) * | 1968-11-04 | 1970-10-06 | Collins Radio Co | Infinite range electronics gain control circuit |
| US3582807A (en) * | 1969-07-28 | 1971-06-01 | Tektronix Inc | Amplifier gain control circuit including diode bridge |
-
1957
- 1957-05-28 GB GB1697357A patent/GB835307A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3311840A (en) * | 1964-05-27 | 1967-03-28 | Rolf S Gillard | Bridge type circuit for controlling the gain of a transistor amplifier |
| DE1297155B (en) * | 1966-07-20 | 1969-06-12 | Siemens Ag | Contactless controllable damping element |
| US3533006A (en) * | 1968-11-04 | 1970-10-06 | Collins Radio Co | Infinite range electronics gain control circuit |
| US3582807A (en) * | 1969-07-28 | 1971-06-01 | Tektronix Inc | Amplifier gain control circuit including diode bridge |
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