GB375698A - Improvements in or relating to electrical high frequency oscillatory systems - Google Patents
Improvements in or relating to electrical high frequency oscillatory systemsInfo
- Publication number
- GB375698A GB375698A GB34766/31A GB3476631A GB375698A GB 375698 A GB375698 A GB 375698A GB 34766/31 A GB34766/31 A GB 34766/31A GB 3476631 A GB3476631 A GB 3476631A GB 375698 A GB375698 A GB 375698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- output
- input
- oscillator
- shows
- amplifier
- 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
- 230000003534 oscillatory effect Effects 0.000 title 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000000087 stabilizing effect 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
- H03B5/18—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
- Amplifiers (AREA)
Abstract
375,698. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Conklin, J. W. ; Rocky Point, and Finch, J. L. ; Patchogue, both in Long Island, New York, U.S.A.) Dec. 15, 1931, No. 34766. Convention date, Jan. 26. [Class 40 (v).] In a thermionic generator stabilized by a long electrical line both standing and travelling waves are utilized for feeding back energy. Fig. 2 shows a neutralized oscillator 30 which is stabilized by a line 2 inductively coupled by coil 42 to the output by a coil of few turns so that large currents are introduced. An inductive reactance 44 is introduced to give the necessary 90‹ phase change to obtain the required phase on the grid 38. Fig. 5 shows the application to short-wave generation of a push-pull screen-grid oscillator coupled to a power amplifier 102 in which condensers 68, 70 are used for obtaining the 90‹ phase change and slides 98 for fine adjustment of the frequency. The output is applied to the amplifier 102 by magnetic coupling between the output tuning loop 4 and a loop 100 in the input to the amplifier. Modulation is applied to the oscillator as shown. Fig. 6 shows an arrangement for stabilizing on the longer wave-lengths in which harmonics are obtained from the frequency multiplier 120 the input 122 of which is tuned the fundamental and the output 124 to a harmonic, a line 130 being used to couple the input and output and having a length of the desired number of half wave-lengths of the harmonic frequency selected.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US375698XA | 1931-01-26 | 1931-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB375698A true GB375698A (en) | 1932-06-30 |
Family
ID=21895051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34766/31A Expired GB375698A (en) | 1931-01-26 | 1931-12-15 | Improvements in or relating to electrical high frequency oscillatory systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB375698A (en) |
-
1931
- 1931-12-15 GB GB34766/31A patent/GB375698A/en not_active Expired
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