GB540218A - Improvements in electronic relay circuit arrangements - Google Patents
Improvements in electronic relay circuit arrangementsInfo
- Publication number
- GB540218A GB540218A GB605340A GB605340A GB540218A GB 540218 A GB540218 A GB 540218A GB 605340 A GB605340 A GB 605340A GB 605340 A GB605340 A GB 605340A GB 540218 A GB540218 A GB 540218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- grid
- anode
- condenser
- resistance
- 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
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/20—Repeater circuits; Relay circuits
- H04L25/24—Relay circuits using discharge tubes or semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
540,218. Wireless signalling; valve relays. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., DAVIS, N. E., CLOUGH, N. H., and BOUNDS, L. April 3, 1940, No. 6053. [Class 40 (v)] Relates to keying or switching circuits using gas-filled valves. In order to de-energize the valve, a condenser, charged during the period when the valve is conductive, is so arranged as to reduce the anode potential simultaneously with, or shortly after, the reduction of potential on the grid. When the key S 1 , S 2 is in its "on" position (as shown), the condenser C is connected across the anode resistance R 1 , and the grid of valve V 1 is connected to the positive terminal of the bias battery. When the key is moved to its " off " position, the grid is connected over resistances R 3 , R 4 to negative, and the positively charged side of the condenser C is connected to the cathode, thereby extinguishing the valve. In a modification, Figs. 2 to 6 (not shown), two gas-filled valves are used and the condenser C connected to the anode of each valve, the key in one position making the grid of one valve positive and of the other negative, this condition being reversed in the other position. Keying voltages may be taken across the anode resistances or the valves; the anode resistance may serve as the normal grid resistance of an amplifier, Fig. 3 (not shown), or, when the circuit is used in an early low-voltage low-current stage, the anode resistance may serve as the anode resistance of the amplifier, Fig. 4 (not shown), or the anode of one gas-filled valve may be connected direct to the screen-grid of a multi-grid valve, Fig. 6 (not shown).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB605340A GB540218A (en) | 1940-04-03 | 1940-04-03 | Improvements in electronic relay circuit arrangements |
FR947429D FR947429A (en) | 1940-04-03 | 1947-05-31 | Improvements to electronic relay assemblies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB605340A GB540218A (en) | 1940-04-03 | 1940-04-03 | Improvements in electronic relay circuit arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB540218A true GB540218A (en) | 1941-10-09 |
Family
ID=9807554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB605340A Expired GB540218A (en) | 1940-04-03 | 1940-04-03 | Improvements in electronic relay circuit arrangements |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR947429A (en) |
GB (1) | GB540218A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2476978A (en) * | 1944-02-03 | 1949-07-26 | Int Standard Electric Corp | Time base circuit for cathode-ray tubes |
-
1940
- 1940-04-03 GB GB605340A patent/GB540218A/en not_active Expired
-
1947
- 1947-05-31 FR FR947429D patent/FR947429A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2476978A (en) * | 1944-02-03 | 1949-07-26 | Int Standard Electric Corp | Time base circuit for cathode-ray tubes |
Also Published As
Publication number | Publication date |
---|---|
FR947429A (en) | 1949-07-01 |
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