GB475048A - Improvements in or relating to thermionic valve oscillation generators - Google Patents
Improvements in or relating to thermionic valve oscillation generatorsInfo
- Publication number
- GB475048A GB475048A GB1330336A GB1330336A GB475048A GB 475048 A GB475048 A GB 475048A GB 1330336 A GB1330336 A GB 1330336A GB 1330336 A GB1330336 A GB 1330336A GB 475048 A GB475048 A GB 475048A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetron
- anode
- grid
- anode voltage
- frequency
- 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
- H03C—MODULATION
- H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal
- H03C5/02—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal by means of transit-time tube
- H03C5/04—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal by means of transit-time tube the tube being a magnetron
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
475,048. Generating circuits using vacuum apparatus. BAIRD TELEVISION, Ltd., and FORMAN, R. J. H. May 11, 1936, Nos. 13303 and 13304. [Class 40 (v)] A split-anode magnetron oscillation-generator, in which variation of frequency due to variation in magnetic field and anode voltage is prevented by operating the magnetron in the dynatron condition and supplying the field current and anode voltage from the same source, is used to control a magnetron modulator. Small changes in field current and anode voltage, due to changes in the supply voltage, have, under suitable conditions, opposite effects on the frequency. The split-anode magnetron 1 oscillates in the dynatron condition and has its field coil 4 and anode voltage supplied from the same source S, S. The supply may be roughly stabilized by means of a barretter. The magnetron 1 is interconnected with a modulating magnetron 2 which feeds Lecher wires 3 and receives modulation current through terminals M, M. The frequency-stabilized magnetron 1 may be of relatively low power. Its output may be applied to the cathode circuit of the modulating magnetron 2, in which case grid modulation is adopted; or to the grid, in which case either grid or series modulation is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1330336A GB475048A (en) | 1936-05-11 | 1936-05-11 | Improvements in or relating to thermionic valve oscillation generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1330336A GB475048A (en) | 1936-05-11 | 1936-05-11 | Improvements in or relating to thermionic valve oscillation generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB475048A true GB475048A (en) | 1937-11-11 |
Family
ID=10020498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1330336A Expired GB475048A (en) | 1936-05-11 | 1936-05-11 | Improvements in or relating to thermionic valve oscillation generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB475048A (en) |
-
1936
- 1936-05-11 GB GB1330336A patent/GB475048A/en not_active Expired
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