GB759443A - Improvements in or relating to multi-stage valve amplifiers - Google Patents
Improvements in or relating to multi-stage valve amplifiersInfo
- Publication number
- GB759443A GB759443A GB3031454A GB3031454A GB759443A GB 759443 A GB759443 A GB 759443A GB 3031454 A GB3031454 A GB 3031454A GB 3031454 A GB3031454 A GB 3031454A GB 759443 A GB759443 A GB 759443A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- coupled
- cathode
- direct
- follower
- 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
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
759,443. Valve amplifying circuits. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE.] Oct. 21, 1954 [Jan. 29, 1954], No. 30314/54. Class 40 (6). A negative feedback amplifier includes two, or more, cathode follower stages in cascade. An input stage 1 feeds a stage 2 direct-coupled to a tetrode cathode-follower 3 which in turn is direct-coupled to a second cathode-follower 4. The valve 4 is again direct-coupled to an output stage 5, and direct-coupled negative feedback is applied over the stages 2, 3, 4 by returning the grid leak 9 of the stage 2 to part 8 of the cathode load resistor of the stage 4. Both the output stage 5 and the preceding cathode follower 4 are driven into grid current. Overall A.C. coupled negative feedback may be applied as well and the Specification also describes (Fig. 2, not shown) a push-pull amplifier in which it is included, this amplifier comprising a pair of amplifiers of the type described with reference to Fig. 1. Specification 471,128 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET8966A DE1010570B (en) | 1954-01-29 | 1954-01-29 | Power amplifier with a counter-coupled amplifier cascade preceding the output stage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB759443A true GB759443A (en) | 1956-10-17 |
Family
ID=7546001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3031454A Expired GB759443A (en) | 1954-01-29 | 1954-10-21 | Improvements in or relating to multi-stage valve amplifiers |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1010570B (en) |
| GB (1) | GB759443A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH181659A (en) * | 1935-04-18 | 1935-12-31 | Siemens Ag Albis | Amplifier cascade with negative feedback. |
| DE752966C (en) * | 1936-02-27 | 1952-06-03 | Marconi Wireless Telegraph Co | Circuit for modulating transmitters |
| DE895781C (en) * | 1944-12-12 | 1953-11-05 | Telefunken Gmbh | AC voltage amplifier with negative feedback over several stages |
| NL152464B (en) * | 1949-03-24 | Feldmuehle Anlagen Prod | DEVICE FOR DYING COMMON MATERIAL USING A SOCKET ROLLER. |
-
1954
- 1954-01-29 DE DET8966A patent/DE1010570B/en active Pending
- 1954-10-21 GB GB3031454A patent/GB759443A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1010570B (en) | 1957-06-19 |
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