GB522808A - Improvements in thermionic time delay circuits - Google Patents
Improvements in thermionic time delay circuitsInfo
- Publication number
- GB522808A GB522808A GB3677838A GB3677838A GB522808A GB 522808 A GB522808 A GB 522808A GB 3677838 A GB3677838 A GB 3677838A GB 3677838 A GB3677838 A GB 3677838A GB 522808 A GB522808 A GB 522808A
- Authority
- GB
- United Kingdom
- Prior art keywords
- time delay
- circuit
- valve
- thermionic
- grid
- 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
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
- H03K17/288—Modifications for introducing a time delay before switching in tube switches
Landscapes
- Relay Circuits (AREA)
Abstract
522,808. Valve relay circuits. GENERAL ELECTRIC CO., Ltd., and SCOWCROFT, J. Dec. 17, 1938, No. 36778. [Class 40 (v)] A circuit arrangement for producing time delay switching comprises a thermionic triode 1 having a relay B for effecting the switching in its anode circuit, a voltage-dropping resistance 6 in its cathode circuit, and a condenserresistance combination 4, 5 in its grid circuit in association with a switch A1 for initiating operation. On operation of the latter to complete the cathode circuit of the valve, the latter is rendered conductive but only after a time delay sufficient to enable the previously charged condenser to discharge to a value insufficient to maintain a blocking voltage on the grid of the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3677838A GB522808A (en) | 1938-12-17 | 1938-12-17 | Improvements in thermionic time delay circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3677838A GB522808A (en) | 1938-12-17 | 1938-12-17 | Improvements in thermionic time delay circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB522808A true GB522808A (en) | 1940-06-27 |
Family
ID=10391112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3677838A Expired GB522808A (en) | 1938-12-17 | 1938-12-17 | Improvements in thermionic time delay circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB522808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2428488A (en) * | 1945-01-08 | 1947-10-07 | Automatic Elect Lab | Impulse testing apparatus |
-
1938
- 1938-12-17 GB GB3677838A patent/GB522808A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2428488A (en) * | 1945-01-08 | 1947-10-07 | Automatic Elect Lab | Impulse testing apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB485120A (en) | Improvements in or relating to relaxation oscillation generators | |
| GB556511A (en) | Improvements in and relating to time delay electric relays | |
| GB553845A (en) | Slow-operated electrical circuit | |
| GB522808A (en) | Improvements in thermionic time delay circuits | |
| GB467915A (en) | Improvements in or relating to electron discharge devices and to circuits therefor | |
| GB442747A (en) | Improvements in or relating to electric circuits employing gas-filled discharge devices | |
| GB522986A (en) | Improvements in electrical relays | |
| GB521942A (en) | Methods and means for rapid heating of electron discharge tube filaments | |
| GB828865A (en) | Electric circuits for preventing or minimizing arcing at circuit-breaker or switch contacts | |
| GB549125A (en) | Improvements in and relating to electrical control systems employing vacuum tubes operating with secondary emission | |
| GB542092A (en) | Improvements in grid-biassing arrangements for grid-controlled valves | |
| GB487466A (en) | Improvements in and relating to valve circuit arrangements for automatic limitation of the duration of an electrical process | |
| GB463410A (en) | Arrangements for supplying current to thermionic valve amplifiers from commercial supply mains | |
| GB504680A (en) | Improvements in or relating to sequentially operating circuit arrangements suitable for use for sequential switching | |
| GB549484A (en) | Improvements in or relating to thermionic valve circuits | |
| GB517671A (en) | Improvements in or relating to thermionic valves and circuit arrangements therefor | |
| GB450986A (en) | Improvements in thermionic and like time-base circuits | |
| GB445418A (en) | Means for commutation in electric converting arrangements employing discharge devices | |
| GB498210A (en) | Improvements in and relating to electric valve circuits | |
| GB490500A (en) | Circuit for generating or amplifying high frequency electric oscillations | |
| GB390309A (en) | Improvements in or relating to the control of circuits by means of electron tubes | |
| GB526721A (en) | Improvements in or relating to time delay circuit arrangements and to relaxation oscillation generators | |
| GB496121A (en) | Improvements in electric circuits for use in connection with discharge lamps | |
| GB410606A (en) | Improvements in or relating to electric discharge devices | |
| GB487628A (en) | Improvements in electrical circuits for frequency changing |