GB389970A - Improvements in electric signalling circuits with thermionic valves - Google Patents
Improvements in electric signalling circuits with thermionic valvesInfo
- Publication number
- GB389970A GB389970A GB502532A GB502532A GB389970A GB 389970 A GB389970 A GB 389970A GB 502532 A GB502532 A GB 502532A GB 502532 A GB502532 A GB 502532A GB 389970 A GB389970 A GB 389970A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- signal
- class
- general electric
- change
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/08—Amplitude regulation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electronic Switches (AREA)
Abstract
389,970. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., c/o General Electric Co., Wembley, Middlesex. Feb. 19, 1932, No. 5025. [Class 40 (v).] In a trigger relay circuit of the kind described in Specification 148,582, [Class 40 (iv), Telephones &c.], in which the output is independent of the input so long as this is above a critical value, the connection between the mutually.. reinforcing elements is inductive. The Figure shows valves VI, V2 arranged as anode-bend and leaky-grid detectors, respectively, and coupled by condenser C1 so that a signal applied to V1 is caused to change the grid bias of this valve due to change in the anode current of V2. The arrangement is completely self restoring since the signal is passed from valve V1 to valve V2 mainly by the signal frequency and not with the carrier frequency. Other forms of rectifiers and amplifiers may be used and a transformer coupling may be used instead of a capacitative coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB502532A GB389970A (en) | 1932-02-19 | 1932-02-19 | Improvements in electric signalling circuits with thermionic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB502532A GB389970A (en) | 1932-02-19 | 1932-02-19 | Improvements in electric signalling circuits with thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB389970A true GB389970A (en) | 1933-03-30 |
Family
ID=9788322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB502532A Expired GB389970A (en) | 1932-02-19 | 1932-02-19 | Improvements in electric signalling circuits with thermionic valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB389970A (en) |
-
1932
- 1932-02-19 GB GB502532A patent/GB389970A/en not_active Expired
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