GB559078A - Improvements in or relating to thermionic valve amplifying circuits - Google Patents
Improvements in or relating to thermionic valve amplifying circuitsInfo
- Publication number
- GB559078A GB559078A GB652442A GB652442A GB559078A GB 559078 A GB559078 A GB 559078A GB 652442 A GB652442 A GB 652442A GB 652442 A GB652442 A GB 652442A GB 559078 A GB559078 A GB 559078A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- valve
- cathode
- transformer
- series
- 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
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/36—DC amplifiers in which all stages are DC-coupled with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
559,078. Valve amplifying circuits. WHITE, E. L. C. May 13, 1942, No. 6524. [Class 40 (v)] An amplifier comprises a plurality of valves connected in cascade for signal frequencies and in series for the anode supply current so that one valve forms a cathode load to another and potentials are stabilized by cathode follower action. The Figure shows a pair of valves 3, 4 transformer coupled and with transformer input and output circuits. Gain control is applied by potentiometer 23 to the valve 3 the valve 4 being indirectly controlled in a similar sense due to the series connection of the valves. In a modification, Fig. 4 (not shown), four series connected pentode valves are used and screen potentials are derived from the cathode of the second preceding valve through a voltage dropping resistance. Instead of transformer coupling any other form of indirect coupling may be used such as resistance capacity coupling. The valves may be cascade connected in any order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB652442A GB559078A (en) | 1942-05-13 | 1942-05-13 | Improvements in or relating to thermionic valve amplifying circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB652442A GB559078A (en) | 1942-05-13 | 1942-05-13 | Improvements in or relating to thermionic valve amplifying circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB559078A true GB559078A (en) | 1944-02-03 |
Family
ID=9816079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB652442A Expired GB559078A (en) | 1942-05-13 | 1942-05-13 | Improvements in or relating to thermionic valve amplifying circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB559078A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673254A (en) * | 1951-04-12 | 1954-03-23 | Philco Corp | Low-noise amplifier |
| US2692919A (en) * | 1951-06-11 | 1954-10-26 | Rca Corp | Stabilized driven grounded grid amplifier circuits |
| US2763733A (en) * | 1952-03-21 | 1956-09-18 | Wallace H Coulter | Amplifier having series-connected output tubes |
| US2795694A (en) * | 1954-09-27 | 1957-06-11 | Standard Coil Prod Co Inc | Cascode amplifier with signal and a. g. c. voltages applied to different stages |
| US2943267A (en) * | 1955-10-31 | 1960-06-28 | Sperry Rand Corp | Series-energized transistor amplifier |
| US2999984A (en) * | 1956-02-13 | 1961-09-12 | Honeywell Regulator Co | Series-energized cascaded transistor amplifier |
| US3132306A (en) * | 1960-10-06 | 1964-05-05 | Gen Electric | Automatic gain control circuit |
-
1942
- 1942-05-13 GB GB652442A patent/GB559078A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673254A (en) * | 1951-04-12 | 1954-03-23 | Philco Corp | Low-noise amplifier |
| US2692919A (en) * | 1951-06-11 | 1954-10-26 | Rca Corp | Stabilized driven grounded grid amplifier circuits |
| US2763733A (en) * | 1952-03-21 | 1956-09-18 | Wallace H Coulter | Amplifier having series-connected output tubes |
| US2795694A (en) * | 1954-09-27 | 1957-06-11 | Standard Coil Prod Co Inc | Cascode amplifier with signal and a. g. c. voltages applied to different stages |
| US2943267A (en) * | 1955-10-31 | 1960-06-28 | Sperry Rand Corp | Series-energized transistor amplifier |
| US2999984A (en) * | 1956-02-13 | 1961-09-12 | Honeywell Regulator Co | Series-energized cascaded transistor amplifier |
| US3132306A (en) * | 1960-10-06 | 1964-05-05 | Gen Electric | Automatic gain control circuit |
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