GB189135A - Improvements in and relating to electron discharge devices and methods of operating same - Google Patents
Improvements in and relating to electron discharge devices and methods of operating sameInfo
- Publication number
- GB189135A GB189135A GB31252/22A GB3125222A GB189135A GB 189135 A GB189135 A GB 189135A GB 31252/22 A GB31252/22 A GB 31252/22A GB 3125222 A GB3125222 A GB 3125222A GB 189135 A GB189135 A GB 189135A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- cathode
- frequency
- relating
- methods
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
- H01J21/18—Tubes with a single discharge path having magnetic control means; having both magnetic and electrostatic control means
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Amplifiers (AREA)
Abstract
189,135. British Thomson - Houston Co., Ltd., (Assignees of Hull, A. W.). Nov. 15, 1921, [Convention date]. Frequency, changing.- In a two electrode thermionic valve for use as a frequency doubler and amplifier, one of the electrodes is made of helical form, and is adapted to carry a current of sufficient magnitude to produce a magnetic field parallel with the axis of the cathode capable of suppressing the discharge between the electrodes. A magnetic field due to an external winding may be superposed on that due to the electrode. The cathode 7 is heated by the alternating or variable current to be amplified, and the anode 6 is connected with the cathode through a battery 11 and the primary of a transformer 26, the secondary of which is connected with the cathode of a second valve 27. The primary may be shunted by a variable condenser 28. Each valve acts as a frequency-doubler, so that the frequency in the output circuit 31 of the valve 27 will be four times that of the input circuit 20 of the valve 25. Specification 182,516, [Class 37, Electricity, Measuring &c.], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US189135XA | 1921-11-15 | 1921-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB189135A true GB189135A (en) | 1924-03-17 |
Family
ID=21790402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31252/22A Expired GB189135A (en) | 1921-11-15 | 1922-11-15 | Improvements in and relating to electron discharge devices and methods of operating same |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB189135A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2819389A (en) * | 1944-03-30 | 1958-01-07 | Frank J Kaehni | High frequency detector |
-
1922
- 1922-11-15 GB GB31252/22A patent/GB189135A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2819389A (en) * | 1944-03-30 | 1958-01-07 | Frank J Kaehni | High frequency detector |
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