GB666489A - Improvements in or relating to thermionic valve amplifiers - Google Patents
Improvements in or relating to thermionic valve amplifiersInfo
- Publication number
- GB666489A GB666489A GB5959/48A GB595948A GB666489A GB 666489 A GB666489 A GB 666489A GB 5959/48 A GB5959/48 A GB 5959/48A GB 595948 A GB595948 A GB 595948A GB 666489 A GB666489 A GB 666489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stages
- bandwidth
- pair
- tuned
- centre frequency
- 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
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0138—Electrical filters or coupling circuits
- H03H7/0146—Coupling circuits between two tubes, not otherwise provided for
-
- 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
- H03F1/42—Modifications of amplifiers to extend the bandwidth
- H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
- H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1775—Parallel LC in shunt or branch path
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
666,489. Valve amplifying circuits. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. Feb. 27, 1948 [Aug. 30, 1945], No. 5959/48. Drawings to Specification. Class 40 (vi). A valve amplifier, particularly for intermediate frequencies, with bandwidth #f and centre frequency f o comprises n stages, each tuned by a single resonant circuit and associated in pairs. The stages of a pair have a bandwidth equal to and are tuned above and below the centre frequency f o by where k is an odd integer associated with the pair. When the ratio #f/f o =# (bandwidth/ centre frequency) is not negligibly small, the stages of each pair are tuned to frequencies f o α k and fo/α k and each has a Q-value equal to 1 -, where d k and k is an odd integer between 1 and n-1 associated with the pair. If the number of stages should be odd, one stage'is tuned to the centre frequency f o and has bandwidth #f. The Specification includes tables of desired bandwidth and staggering for different numbers of stages.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US613605A US2451893A (en) | 1945-08-30 | 1945-08-30 | Stagger tuned amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
GB666489A true GB666489A (en) | 1952-02-13 |
Family
ID=24457958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5959/48A Expired GB666489A (en) | 1945-08-30 | 1948-02-27 | Improvements in or relating to thermionic valve amplifiers |
Country Status (2)
Country | Link |
---|---|
US (1) | US2451893A (en) |
GB (1) | GB666489A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2668881A (en) * | 1949-12-27 | 1954-02-09 | Bendix Aviat Corp | Maximum gain-bandwidth amplifier system |
US3296545A (en) * | 1964-05-27 | 1967-01-03 | John R Hicks | Stagger-tuned audio amplifier |
JP5319006B2 (en) * | 2012-10-10 | 2013-10-16 | ルネサスエレクトロニクス株式会社 | Power amplifier circuit |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1438828A (en) * | 1920-03-29 | 1922-12-12 | Harry W Houck | Method and apparatus for selectively transferring electrical oscillatory energy |
BE428065A (en) * | 1937-05-13 |
-
1945
- 1945-08-30 US US613605A patent/US2451893A/en not_active Expired - Lifetime
-
1948
- 1948-02-27 GB GB5959/48A patent/GB666489A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2451893A (en) | 1948-10-19 |
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