GB698278A - Improvements in or relating to electrical circuit arrangements for standard frequency sources - Google Patents
Improvements in or relating to electrical circuit arrangements for standard frequency sourcesInfo
- Publication number
- GB698278A GB698278A GB312351A GB312351A GB698278A GB 698278 A GB698278 A GB 698278A GB 312351 A GB312351 A GB 312351A GB 312351 A GB312351 A GB 312351A GB 698278 A GB698278 A GB 698278A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- circuit
- loads
- frequency
- feb
- 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
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
Landscapes
- Amplifiers (AREA)
Abstract
698,278. Valve generating circuits. MUIRHEAD & CO., Ltd. Feb. 5, 1952 [Feb. 8, 1951], No. 3123/61. Class 40 (vi). An oscillator comprises an amplifier including two valves having low anode resistance, a low impedance load in each anode, a common cathode resistance having a high value compared with the two anode resistances and loads in parallel and a 4-terminal frequency controlling element having its input terminals connected to the anodes and its output terminals connected in regenerative sense to the control grids. In the circuit shown the output of a tuning fork frequency controlling circuit is applied in push-pull to the control grids where symmetrical limiting of the oscillation amplitude is effected by grid current. The input of the fork circuit is provided from push-pull connections to equal anode loads. The cathode resistor stabilizes the frequency against changes in circuit conditions while adjustment of the grid bias or individual or joint control of the anode loads will provide a small adjustment of frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB312351A GB698278A (en) | 1951-02-08 | 1951-02-08 | Improvements in or relating to electrical circuit arrangements for standard frequency sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB312351A GB698278A (en) | 1951-02-08 | 1951-02-08 | Improvements in or relating to electrical circuit arrangements for standard frequency sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB698278A true GB698278A (en) | 1953-10-14 |
Family
ID=9752345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB312351A Expired GB698278A (en) | 1951-02-08 | 1951-02-08 | Improvements in or relating to electrical circuit arrangements for standard frequency sources |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB698278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3192486A (en) * | 1961-10-02 | 1965-06-29 | Varo | Tuning fork reference oscillators with time duration control |
-
1951
- 1951-02-08 GB GB312351A patent/GB698278A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3192486A (en) * | 1961-10-02 | 1965-06-29 | Varo | Tuning fork reference oscillators with time duration control |
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