GB705901A - Improvements relating to modulated carrier wave apparatus - Google Patents
Improvements relating to modulated carrier wave apparatusInfo
- Publication number
- GB705901A GB705901A GB244950A GB244950A GB705901A GB 705901 A GB705901 A GB 705901A GB 244950 A GB244950 A GB 244950A GB 244950 A GB244950 A GB 244950A GB 705901 A GB705901 A GB 705901A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- carrier wave
- smoothing
- modulated carrier
- smoothing capacitor
- 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
- 238000009499 grossing Methods 0.000 abstract 5
- 239000003990 capacitor Substances 0.000 abstract 3
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
- Toys (AREA)
- Amplitude Modulation (AREA)
Abstract
705,901. Automatic gain control. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 12, 1951 [Jan. 31, 1950], No. 2449/50. Class 40 (5). [Also in Group XXXV] In modulated carrier wave apparatus the smoothing of an automatic control voltage is effected by applying the voltage to the input of an amplifier through a resistance and connecting the smoothing capacitor between the input and a point at which appears a voltage in amplified form and of opposite polarity. By this means a smaller smoothing capacitor may be used. In the circuit shown a control voltage for automatic gain or frequency control is applied through a smoothing resistor 11 to the grid of the first valve of a cathode coupled pair and the smoothing capacitor 6 is connected between this grid and the first anode or the junction of output resistors 8 and 9 or the output of a further amplifier 14 connected to the junction. If a control voltage of the opposite sign is required it may be derived from the anode of valve 2. Specifications 589,613, [Group XXXV], and 626,088 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB244950A GB705901A (en) | 1950-01-31 | 1950-01-31 | Improvements relating to modulated carrier wave apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB244950A GB705901A (en) | 1950-01-31 | 1950-01-31 | Improvements relating to modulated carrier wave apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB705901A true GB705901A (en) | 1954-03-24 |
Family
ID=9739773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB244950A Expired GB705901A (en) | 1950-01-31 | 1950-01-31 | Improvements relating to modulated carrier wave apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB705901A (en) |
-
1950
- 1950-01-31 GB GB244950A patent/GB705901A/en not_active Expired
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