GB234809A - Improvements in electron discharge apparatus and circuit arrangements employing them - Google Patents
Improvements in electron discharge apparatus and circuit arrangements employing themInfo
- Publication number
- GB234809A GB234809A GB13591/25A GB1359125A GB234809A GB 234809 A GB234809 A GB 234809A GB 13591/25 A GB13591/25 A GB 13591/25A GB 1359125 A GB1359125 A GB 1359125A GB 234809 A GB234809 A GB 234809A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- impedance
- capacity
- potential
- plate
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/163—Special arrangements for the reduction of the damping of resonant circuits of receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cold Cathode And The Manufacture (AREA)
- Secondary Cells (AREA)
Abstract
234,809. British Thomson - Houston Co., Ltd., (Assignees of Clothier, S. L.). May 29, 1924, [Convention date]. Thermionic amplifiers and detectors, of the kind employing a four-electrode valve, have the inner or space-charge grid connected through an impedance to a point of positive potential, the impedance being adjusted so as to produce a reaction effect owing to the capacity between the two grids. As shown, the valve 1 has its control grid 4 and its filament 2 connected across a coil in a wireless receiving-aerial 6, the plate circuit including telephones and a battery 8. The spacecharge grid 5 is connected to a tapping 7 on the plate battery through a variable inductance 9 shunted by a variable condenser 10. The inductance 9 may be in the form of a variometer, the self-capacity of which may render a condenser 10 unnecessary. The current in the space-charge grid circuit varies in opposite phase to the plate current as the potential of the control grid varies, and the impedance 9, 10 is adjusted to have a suitable capacity reactance so that the potential variations on the grid 5 induce potentials on the grid 4 substantially in phase with those originally applied to that grid. Specification 149,014 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US716821A US1585464A (en) | 1924-05-29 | 1924-05-29 | Electron-discharge apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB234809A true GB234809A (en) | 1925-09-17 |
Family
ID=24879580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13591/25A Expired GB234809A (en) | 1924-05-29 | 1925-05-25 | Improvements in electron discharge apparatus and circuit arrangements employing them |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1585464A (en) |
| GB (1) | GB234809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10626821B2 (en) | 2013-03-27 | 2020-04-21 | Ford Global Technologies, Llc | Methods and system for improving vehicle operation |
-
1924
- 1924-05-29 US US716821A patent/US1585464A/en not_active Expired - Lifetime
-
1925
- 1925-05-25 GB GB13591/25A patent/GB234809A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10626821B2 (en) | 2013-03-27 | 2020-04-21 | Ford Global Technologies, Llc | Methods and system for improving vehicle operation |
Also Published As
| Publication number | Publication date |
|---|---|
| US1585464A (en) | 1926-05-18 |
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