GB576103A - Improvements in automatic volume control devices in radio pulse receivers - Google Patents
Improvements in automatic volume control devices in radio pulse receiversInfo
- Publication number
- GB576103A GB576103A GB1805042A GB1805042A GB576103A GB 576103 A GB576103 A GB 576103A GB 1805042 A GB1805042 A GB 1805042A GB 1805042 A GB1805042 A GB 1805042A GB 576103 A GB576103 A GB 576103A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- gain control
- cathode
- diode
- tuning indicator
- 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
- 241000167854 Bourreria succulenta Species 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
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
576,103. Automatic gain control. GENERAL ELECTRIC CO., Ltd., and CHERRY, E. C. Dec. 18, 1942, No. 18050. [Class 40 (v)] In a wireless receiver designed for signals consisting of short pulses of carrier-frequency energy, automatic gain control is effected by use of part of a tuning indicator tube of the cathode-ray type as a D.C. amplifier of the rectified potential from a diode detector. The diode V4 is fed with pulses from an anode bend rectifier valve V2, via condenser C3 and resistance R4. The D.C. potential appearing across the diode load, comprising resistance R and capacitance C, is applied between grid and cathode of the tuning indicator tube V3. The gain control voltage for the early stages of the receiver is taken off across a resistance R2 connected in the cathode lead of the tube V3, a suitable standing bias being maintained by connecting the lower end of the resistance R2 to a source of negative potential. The ganged switches S1, S2 are arranged to be normally open, so that AVC is operative ; on closing the switches, the AVC is put out of action and the tuning indicator target T connected in circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1805042A GB576103A (en) | 1942-12-18 | 1942-12-18 | Improvements in automatic volume control devices in radio pulse receivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1805042A GB576103A (en) | 1942-12-18 | 1942-12-18 | Improvements in automatic volume control devices in radio pulse receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB576103A true GB576103A (en) | 1946-03-19 |
Family
ID=10105769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1805042A Expired GB576103A (en) | 1942-12-18 | 1942-12-18 | Improvements in automatic volume control devices in radio pulse receivers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB576103A (en) |
-
1942
- 1942-12-18 GB GB1805042A patent/GB576103A/en not_active Expired
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