GB357286A - Improvements in or relating to a push-pull thermionic amplifier - Google Patents
Improvements in or relating to a push-pull thermionic amplifierInfo
- Publication number
- GB357286A GB357286A GB19934/30A GB1993430A GB357286A GB 357286 A GB357286 A GB 357286A GB 19934/30 A GB19934/30 A GB 19934/30A GB 1993430 A GB1993430 A GB 1993430A GB 357286 A GB357286 A GB 357286A
- Authority
- GB
- United Kingdom
- Prior art keywords
- push
- relating
- loud
- july
- polepieces
- 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
- H03F3/26—Push-pull amplifiers; Phase-splitters therefor
- H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
357,286. Loud - s p e a k e r s. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Wheeler, H. A. ; 78, 22nd Street, Jackson Heights, New York, U.S.A.) July 1, 1930, No. 19934. Convention date, July 16, 1929. [Class 40 (iv).] In a push-pull amplifier operating without a grid biasing battery the output circuit may be connected to coils 5, 6 on the upper and lower limbs respectively of U-shaped polepieces of a loud-speaker of the kind in which the armature 11 moves in a plane parallel with the faces of the polepieces. Specifications 357,306, 358,132, and 358,887 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US357286XA | 1929-07-16 | 1929-07-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB357286A true GB357286A (en) | 1931-09-24 |
Family
ID=21884446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19934/30A Expired GB357286A (en) | 1929-07-16 | 1930-07-01 | Improvements in or relating to a push-pull thermionic amplifier |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE678547C (en) |
GB (1) | GB357286A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1878743A (en) * | 1929-08-17 | 1932-09-20 | Hazelitine Corp | Push-pull amplifier |
US2757244A (en) * | 1950-10-11 | 1956-07-31 | Electro Voice | Broad band amplifier for television systems |
DE1032322B (en) * | 1952-07-15 | 1958-06-19 | Dr Hellmuth Etzold | Arrangement for phase rotation-free feeding of an electromechanical, electroacoustic and electrooptical converter with signal frequencies |
-
1930
- 1930-07-01 GB GB19934/30A patent/GB357286A/en not_active Expired
- 1930-07-08 DE DE1930678547D patent/DE678547C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE678547C (en) | 1939-07-18 |
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