GB453852A - Improvements in or relating to thermionic valve oscillator arrangements - Google Patents
Improvements in or relating to thermionic valve oscillator arrangementsInfo
- Publication number
- GB453852A GB453852A GB844235A GB844235A GB453852A GB 453852 A GB453852 A GB 453852A GB 844235 A GB844235 A GB 844235A GB 844235 A GB844235 A GB 844235A GB 453852 A GB453852 A GB 453852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- oscillator
- valve
- tuned
- power
- 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
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000010355 oscillation Effects 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
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
453,852. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and GEORGE, D. F., The Chalet, Shenfield Gardens, Hutton, Essex. March 18, 1935, No. 8442. [Class 40 (v)] A back-coupled oscillator giving considerable power output comprises a multi-grid valve with one grid employed for back-coupling, and with the frequency controlled by oscillations from a separate control oscillator applied to another grid. As shown, the control oscillator 41 is a screen-grid valve with a crystal 45 connected in series with a condenser 44 between the inner grid and the plate. The output is fed by the condenser 39 and resistance 38 to the inner grid 21 of the power oscillator valve 1, the outer grid 3 and plate 2 of which are connected as in the Hartley circuit to a tuned output circuit 4, 6 supplying a load 20a. The circuits are separated by screens 18 as shown. A shielding grid may be interposed between the grids 3, 21, Fig. 2 (not shown). In another modification, an isolating valve is interposed between the control oscillator and the power oscillator to prevent any reactive effect of the latter upon the former. The power oscillator may be tuned to a multiple or submultiple of the frequency of the control oscillator. The power oscillator may have a second tuned circuit coupled to the tuned circuit 4, 6 to give a band-pass effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB844235A GB453852A (en) | 1935-03-18 | 1935-03-18 | Improvements in or relating to thermionic valve oscillator arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB844235A GB453852A (en) | 1935-03-18 | 1935-03-18 | Improvements in or relating to thermionic valve oscillator arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB453852A true GB453852A (en) | 1936-09-18 |
Family
ID=9852562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB844235A Expired GB453852A (en) | 1935-03-18 | 1935-03-18 | Improvements in or relating to thermionic valve oscillator arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB453852A (en) |
-
1935
- 1935-03-18 GB GB844235A patent/GB453852A/en not_active Expired
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