GB513970A - Improvements in or relating to electrical tuned circuits - Google Patents
Improvements in or relating to electrical tuned circuitsInfo
- Publication number
- GB513970A GB513970A GB12344/38A GB1234438A GB513970A GB 513970 A GB513970 A GB 513970A GB 12344/38 A GB12344/38 A GB 12344/38A GB 1234438 A GB1234438 A GB 1234438A GB 513970 A GB513970 A GB 513970A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- spheres
- halves
- april
- flanges
- 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
- 239000004020 conductor Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
- H03B5/1817—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator
- H03B5/1835—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator the active element in the amplifier being a vacuum tube
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
513,970. Electric resonators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 25, 1938, No. 12344. Convention date, April 23, 1937. - [Class 40 (iii)] A resonator comprises inner and outer conductors 2, 1, in the form of spheres or other surfaces of revolution, and an axial rod 3 which is connected to the surfaces conductively at opposite points 4, 6 and capacitively at the remaining points 5,7. Tuning may be effected by turning a closed ring 27 through which some of the magnetic flux passes. A valve 9 of the acorn type may be connected to the sphere 1 and rod 3 to form an oscillator. In a modification, Fig. 2 (not shown), the valve may be inside the inner sphere 2 and between the two halves into which the rod 3 is then divided, and the output may be taken from a wire loop having one side adjacent and parallel to the rod 3. The two halves, 3<1>, 3<11> into which the rod is divided may have capacitive flanges 13, 14, Fig. 3, whose distance apart can be adjusted by turning a knob 16. The output leads are connected to small plates 18, 19 capacitively coupled to the flanges 13, 14. Instead of the spheres 1, 2, cylinders may be used, Fig. 4 (not shown). External connection may alternatively be made by coupling means within the rod 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US513970XA | 1937-04-23 | 1937-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB513970A true GB513970A (en) | 1939-10-26 |
Family
ID=21971045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12344/38A Expired GB513970A (en) | 1937-04-23 | 1938-04-25 | Improvements in or relating to electrical tuned circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB513970A (en) |
-
1938
- 1938-04-25 GB GB12344/38A patent/GB513970A/en not_active Expired
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