GB373145A - Improvements in or relating to control systems for use with electrical amplifiers - Google Patents
Improvements in or relating to control systems for use with electrical amplifiersInfo
- Publication number
- GB373145A GB373145A GB484831A GB484831A GB373145A GB 373145 A GB373145 A GB 373145A GB 484831 A GB484831 A GB 484831A GB 484831 A GB484831 A GB 484831A GB 373145 A GB373145 A GB 373145A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- condenser
- valve
- tapping
- cathode
- 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
- 238000010079 rubber tapping Methods 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
- H03G3/06—Manually-operated control in untuned amplifiers having discharge tubes
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
373,145. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and KEALL, O. E., 32, Rainsford Avenue, Chelmsford, Essex. Feb. 16, 1931, No. 4848. [Class 40 (v).] In a resistance coupled amplifier, particularly adapted for use with television signals, the output from one valve to the succeeding valve is controlled bv a condenser C connected between the cathode and a tapping T on the anode resistance R. The impedance of the resistance R between the anode and the tapping in the minimum position is large relative to that of the condenser C at the working frequency to avoid frequency distortion. A decoupling resistance ar is preferably provided and the junction of the two resistances may be connected to the cathode through an additional decoupling condenser C1. The amplifier may be galvanically coupled, Fig. 3 (not shown), and indirectly heated valves may be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB484831A GB373145A (en) | 1931-02-16 | 1931-02-16 | Improvements in or relating to control systems for use with electrical amplifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB484831A GB373145A (en) | 1931-02-16 | 1931-02-16 | Improvements in or relating to control systems for use with electrical amplifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB373145A true GB373145A (en) | 1932-05-17 |
Family
ID=9784928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB484831A Expired GB373145A (en) | 1931-02-16 | 1931-02-16 | Improvements in or relating to control systems for use with electrical amplifiers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB373145A (en) |
-
1931
- 1931-02-16 GB GB484831A patent/GB373145A/en not_active Expired
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