GB180295A - Improvements in and relating to systems for producing oscillating currents - Google Patents
Improvements in and relating to systems for producing oscillating currentsInfo
- Publication number
- GB180295A GB180295A GB1790/22A GB179022A GB180295A GB 180295 A GB180295 A GB 180295A GB 1790/22 A GB1790/22 A GB 1790/22A GB 179022 A GB179022 A GB 179022A GB 180295 A GB180295 A GB 180295A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- grid
- plate
- relating
- systems
- 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
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B7/00—Generation of oscillations using active element having a negative resistance between two of its electrodes
- H03B7/02—Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance
- H03B7/04—Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance active element being vacuum tube
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
180,295. British Thomson - Houston Co., Ltd., (Assignees of Hull, A. W.). May 18, 1921, [Convention date]. Thermionic oscillation generators of the negative - resistance type, and having no coupling between their grid and plate circuits, comprise an electronemitting cathode 2, a grid 4 having a normal positive potential which receives electrons from the cathode and emits secondary electrons, and a plate 3 having a greater positive potential which attracts the secondary electrons. The grid potential may be given by a tap connection 11 from the plate battery 7, and is such that the grid circuit has a negative resistance, causing oscillations to be produced in the tuned circuit 5, 6. The plate circuit is coupled to'an aerial 10 or other load circuit. The circuit 5, 6 which determines the frequency is not coupled to the load.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US180295XA | 1921-05-18 | 1921-05-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB180295A true GB180295A (en) | 1922-12-28 |
Family
ID=21785856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1790/22A Expired GB180295A (en) | 1921-05-18 | 1922-01-20 | Improvements in and relating to systems for producing oscillating currents |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB180295A (en) |
-
1922
- 1922-01-20 GB GB1790/22A patent/GB180295A/en not_active Expired
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