GB594351A - Improvements in or relating to electric oscillation generators - Google Patents
Improvements in or relating to electric oscillation generatorsInfo
- Publication number
- GB594351A GB594351A GB23873/44A GB2387344A GB594351A GB 594351 A GB594351 A GB 594351A GB 23873/44 A GB23873/44 A GB 23873/44A GB 2387344 A GB2387344 A GB 2387344A GB 594351 A GB594351 A GB 594351A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- range
- oscillator
- core
- 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
- 230000010355 oscillation Effects 0.000 title 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 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
- General Induction Heating (AREA)
Abstract
594,351. Valve generating circuits ; impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 29, 1944, No. 23873. Convention date, Sept. 27, 1943. [Classes 40 (iii) and 40 (v)] [Also in Group XXXV] In order that the frequency of an oscillator may be stable throughout a selected range of anode voltage, the tuning inductance 5 is provided with an adjustable copper or other non-magnetic core 11 and an adjustable iron or magnetic dust core 12. The coil 5, suitably tapped, is connected to the valve 1 to form a Colpitts oscillator. Fig. 1 (not shown), or a Hartley oscillator, Fig. 2 (not shown). The condenser 6 comprises two sector-shaped plates spaced apart by a washer, and held by a ring 29 sprung into a groove in the insulating tube 27. The circuit is tuned by setting the relative angular position of the sectors 6, and by axially adjusting the copper core 11 by means of the micrometer head 24. The range of anode voltages at which the frequency will be stable, Fig. 3 (not shown), is selected by similar adjustment of the magnetic core 12, the effect of temperature on the valve being neutralized within this range by that on the circuit elements. An electrostatic screen 20 is distanced from the heating effect of the valve by long pins 17.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US594351XA | 1943-09-27 | 1943-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB594351A true GB594351A (en) | 1947-11-10 |
Family
ID=22022930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23873/44A Expired GB594351A (en) | 1943-09-27 | 1944-11-29 | Improvements in or relating to electric oscillation generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB594351A (en) |
-
1944
- 1944-11-29 GB GB23873/44A patent/GB594351A/en not_active Expired
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