GB397076A - Improvements in and relating to thermionic amplifiers - Google Patents
Improvements in and relating to thermionic amplifiersInfo
- Publication number
- GB397076A GB397076A GB12070/33A GB1207033A GB397076A GB 397076 A GB397076 A GB 397076A GB 12070/33 A GB12070/33 A GB 12070/33A GB 1207033 A GB1207033 A GB 1207033A GB 397076 A GB397076 A GB 397076A
- Authority
- GB
- United Kingdom
- Prior art keywords
- april
- condenser
- resistance
- relating
- thermionic amplifiers
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Secondary Cells (AREA)
Abstract
397,076. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Fitch, W. A. ; 2101, Campbell Avenue, Schenectady, New York, U.S.A.) April 25, 1933, No. 12070. Convention date, April 28, 1932. [Class 40 (v).] In a resistance capacity coupled amplifier for operating over a wide range of frequency, as in television, phase shift introduced by the coupling condenser is neutralized by the provision of a resistance 15 in series with a condenser 14 connected between the anode and cathode. The Specification gives sector diagrams of the phase changes produced.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US608022A US1990781A (en) | 1932-04-28 | 1932-04-28 | Resistance-capacitance coupled amplifier |
US608021A US1941345A (en) | 1932-04-28 | 1932-04-28 | Resistance-capacitance coupled amplifier |
US659199A US1930339A (en) | 1932-04-28 | 1933-03-01 | Amplifier |
US328045A US2270764A (en) | 1932-04-28 | 1940-04-05 | Amplifier coupling circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
GB397076A true GB397076A (en) | 1933-08-17 |
Family
ID=23279265
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12070/33A Expired GB397076A (en) | 1932-04-28 | 1933-04-25 | Improvements in and relating to thermionic amplifiers |
GB6591/34A Expired GB419914A (en) | 1932-04-28 | 1934-03-01 | Improvements relating to thermionic amplifiers |
GB4542/41A Expired GB545827A (en) | 1932-04-28 | 1941-04-04 | Improvements in and relating to amplifier coupling circuits |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6591/34A Expired GB419914A (en) | 1932-04-28 | 1934-03-01 | Improvements relating to thermionic amplifiers |
GB4542/41A Expired GB545827A (en) | 1932-04-28 | 1941-04-04 | Improvements in and relating to amplifier coupling circuits |
Country Status (5)
Country | Link |
---|---|
US (4) | US1941345A (en) |
DE (1) | DE629207C (en) |
FR (3) | FR754811A (en) |
GB (3) | GB397076A (en) |
NL (1) | NL39142C (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE948424C (en) * | 1936-10-12 | 1956-08-30 | Loewe Opta Ag | Arrangement for lifelike image reproduction, especially for television or measurement purposes |
US2416977A (en) * | 1943-12-31 | 1947-03-04 | Rca Corp | Radio frequency wattmeter |
US2419882A (en) * | 1944-01-10 | 1947-04-29 | Philco Corp | Wide band interstage coupling network |
BE489442A (en) * | 1948-11-12 | |||
BE505075A (en) * | 1950-08-11 | |||
US2882351A (en) * | 1955-02-03 | 1959-04-14 | Philco Corp | Neutralized amplifier circuit |
US8284962B2 (en) * | 2006-01-09 | 2012-10-09 | Clifford William Latshaw | Electronic bass instrument tube preamplifier |
-
1932
- 1932-04-28 US US608021A patent/US1941345A/en not_active Expired - Lifetime
- 1932-04-28 US US608022A patent/US1990781A/en not_active Expired - Lifetime
-
1933
- 1933-03-01 US US659199A patent/US1930339A/en not_active Expired - Lifetime
- 1933-04-21 DE DEI47031D patent/DE629207C/en not_active Expired
- 1933-04-25 GB GB12070/33A patent/GB397076A/en not_active Expired
- 1933-04-27 FR FR754811D patent/FR754811A/en not_active Expired
- 1933-04-27 NL NL65119A patent/NL39142C/xx active
-
1934
- 1934-03-01 FR FR44573D patent/FR44573E/en not_active Expired
- 1934-03-01 GB GB6591/34A patent/GB419914A/en not_active Expired
-
1940
- 1940-04-05 US US328045A patent/US2270764A/en not_active Expired - Lifetime
-
1941
- 1941-04-04 GB GB4542/41A patent/GB545827A/en not_active Expired
- 1941-08-13 FR FR51771D patent/FR51771E/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1941345A (en) | 1933-12-26 |
US1990781A (en) | 1935-02-12 |
FR754811A (en) | 1933-11-13 |
US2270764A (en) | 1942-01-20 |
NL39142C (en) | 1936-10-15 |
DE629207C (en) | 1936-04-24 |
US1930339A (en) | 1933-10-10 |
GB545827A (en) | 1942-06-15 |
GB419914A (en) | 1934-11-21 |
FR44573E (en) | 1935-03-04 |
FR51771E (en) | 1943-05-03 |
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