GB293788A - Improvements in and relating to apparatus for amplifying electrical energy - Google Patents
Improvements in and relating to apparatus for amplifying electrical energyInfo
- Publication number
- GB293788A GB293788A GB14112/28A GB1411228A GB293788A GB 293788 A GB293788 A GB 293788A GB 14112/28 A GB14112/28 A GB 14112/28A GB 1411228 A GB1411228 A GB 1411228A GB 293788 A GB293788 A GB 293788A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacity
- valve
- transformer
- relating
- electrical energy
- 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
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- General Induction Heating (AREA)
Abstract
293,788. British Thomson-Houston Co., Ltd., (Assignees of Bierwirth, R. A.). July 12, 1927, [Convention date]. Thermionic amplifiers. - In an inter-valve coupling comprising a transformer or autotransformer 7 connected through a capacity 8 to the anode circuit of the first valve, which has an inductance 6 in its battery feed branch, uniform amplification of the entire audio-frequency range is secured if the inductances 6 and 7 and the capacity 8 have values dependent (according to formulµ given in the Specification) on the anode circuit resistance of the first valve and the primary circuit resistance of the transformer. The circuit is designed to be resonant at the lower audio-frequency limit, say 30, and amplification is constant up to frequencies where capacity and leakage begin to have effect, say 7000.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US205203A US1795194A (en) | 1927-07-12 | 1927-07-12 | Apparatus for amplifying electrical energy |
Publications (1)
Publication Number | Publication Date |
---|---|
GB293788A true GB293788A (en) | 1929-08-08 |
Family
ID=22761234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14112/28A Expired GB293788A (en) | 1927-07-12 | 1928-05-14 | Improvements in and relating to apparatus for amplifying electrical energy |
Country Status (5)
Country | Link |
---|---|
US (1) | US1795194A (en) |
DE (1) | DE544807C (en) |
FR (1) | FR660695A (en) |
GB (1) | GB293788A (en) |
NL (1) | NL27990C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE977626C (en) * | 1951-04-04 | 1967-09-21 | Rca Corp | Cascode amplifier for high frequencies |
-
0
- NL NL27990D patent/NL27990C/xx active
-
1927
- 1927-07-12 US US205203A patent/US1795194A/en not_active Expired - Lifetime
-
1928
- 1928-05-14 GB GB14112/28A patent/GB293788A/en not_active Expired
- 1928-06-02 DE DEI34540D patent/DE544807C/en not_active Expired
- 1928-07-12 FR FR660695D patent/FR660695A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL27990C (en) | |
DE544807C (en) | 1932-02-24 |
FR660695A (en) | 1929-07-16 |
US1795194A (en) | 1931-03-03 |
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