GB928107A - Improvements in oscillators - Google Patents
Improvements in oscillatorsInfo
- Publication number
- GB928107A GB928107A GB3232761A GB3232761A GB928107A GB 928107 A GB928107 A GB 928107A GB 3232761 A GB3232761 A GB 3232761A GB 3232761 A GB3232761 A GB 3232761A GB 928107 A GB928107 A GB 928107A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacities
- capacitors
- anode
- screen
- 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
- 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
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
928,107. Valve oscillating circuits. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Sept. 8, 1961 [Sept. 8, 1960], No. 32327/61. Class 40 (6). A pentode valve 1 oscillator comprises an oscillatory L.C. circuit 6, 7, 8 between the screen grid 5 and the control grid 4, the inductance 6 being shunted by the two capacitors 7, 8 with the centre point earthed, and the ratio of the capacitors 7, 8 being equal to the ratio of the control grid-anode 17 and screen grid-anode 18 capacities, whereby the four capacities constitute a balanced bridge. The oscillation frequency is thus independent of a variable load (e.g. aerial) coupled in the output tuned circuit 15, 16. The control grid-anode and screen gridanode capacities may be augmented by capacitors 20, 21 if necessary. A frequency modulation device 19 may be connected across the oscillatory circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR838060A FR1274540A (en) | 1960-09-08 | 1960-09-08 | Oscillator refinements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB928107A true GB928107A (en) | 1963-06-06 |
Family
ID=8738664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3232761A Expired GB928107A (en) | 1960-09-08 | 1961-09-08 | Improvements in oscillators |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1274540A (en) |
| GB (1) | GB928107A (en) |
-
1960
- 1960-09-08 FR FR838060A patent/FR1274540A/en not_active Expired
-
1961
- 1961-09-08 GB GB3232761A patent/GB928107A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1274540A (en) | 1961-10-27 |
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