GB148445A - Improvements in thermionic tube electromagnetic wave generating arrangements - Google Patents
Improvements in thermionic tube electromagnetic wave generating arrangementsInfo
- Publication number
- GB148445A GB148445A GB2040020A GB2040020A GB148445A GB 148445 A GB148445 A GB 148445A GB 2040020 A GB2040020 A GB 2040020A GB 2040020 A GB2040020 A GB 2040020A GB 148445 A GB148445 A GB 148445A
- Authority
- GB
- United Kingdom
- Prior art keywords
- connexions
- inductances
- electromagnetic wave
- wave generating
- anodes
- 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
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/12—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of attenuating means
- H03F1/13—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of attenuating means in discharge-tube amplifiers
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- X-Ray Techniques (AREA)
- General Induction Heating (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Sources, Ion Sources (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
148,445. Ges. f³r Drahtlose Telegraphie. Oct. 25, 1918, [Convention date]. Addition to 148,447. Electric oscillations, producing.-In order to prevent the production of undesired frequencies in multipled thermionic valve generators, due to internal capacity coupling, inductances are inserted in the connexions of the electrodes to the common conductors. As shown in Fig. 2, inductances 11, 12 ,13 of different values are arranged in the connexions from the anodes 2, 2<a>, 2<b> to the conductor 10. Inductances may alternatively be inserted in the connexions to the grids or cathodes or in the connexions to any two or all three electrodes. In a modification, inductances 11, 12, Fig. 3, are inserted in the common lead between the anodes or other conductors. In some cases the inductance of the connecting wires from one valve to another may be sufficient to produce the required result, but the connexions must not be of a symmetrical character with uniform inductance throughout the wiring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE348911T | 1918-09-10 | ||
| DEG47314D DE393047C (en) | 1918-09-10 | 1918-10-26 | Switching method to suppress unwanted vibrations when using several cathode generators connected in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB148445A true GB148445A (en) | 1921-12-12 |
Family
ID=33480538
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1990620A Expired GB147854A (en) | 1918-09-10 | 1920-07-09 | Improvements in cathode tube generators |
| GB2049820A Expired GB148523A (en) | 1918-09-10 | 1920-07-10 | Improvements in cathode generators |
| GB2040020A Expired GB148445A (en) | 1918-09-10 | 1920-07-10 | Improvements in thermionic tube electromagnetic wave generating arrangements |
| GB2040220A Expired GB148447A (en) | 1918-09-10 | 1920-07-10 | Improvements in thermionic tube electromagnetic wave generating arrangements |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1990620A Expired GB147854A (en) | 1918-09-10 | 1920-07-09 | Improvements in cathode tube generators |
| GB2049820A Expired GB148523A (en) | 1918-09-10 | 1920-07-10 | Improvements in cathode generators |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2040220A Expired GB148447A (en) | 1918-09-10 | 1920-07-10 | Improvements in thermionic tube electromagnetic wave generating arrangements |
Country Status (3)
| Country | Link |
|---|---|
| DE (2) | DE348911C (en) |
| FR (1) | FR519268A (en) |
| GB (4) | GB147854A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB524314A (en) * | 1939-01-27 | 1940-08-02 | Edmund Ramsay Wigan | Improvements in and relating to thermionic valve oscillators and amplifiers |
| US2663799A (en) * | 1950-05-27 | 1953-12-22 | Zenith Radio Corp | Ultrahigh-frequency oscillation generator |
| DE1056200B (en) * | 1956-10-13 | 1959-04-30 | Rohde & Schwarz | High frequency amplifier |
-
1918
- 1918-09-10 DE DE1918348911D patent/DE348911C/en not_active Expired
- 1918-10-26 DE DEG47314D patent/DE393047C/en not_active Expired
-
1920
- 1920-07-07 FR FR519268D patent/FR519268A/en not_active Expired
- 1920-07-09 GB GB1990620A patent/GB147854A/en not_active Expired
- 1920-07-10 GB GB2049820A patent/GB148523A/en not_active Expired
- 1920-07-10 GB GB2040020A patent/GB148445A/en not_active Expired
- 1920-07-10 GB GB2040220A patent/GB148447A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB148523A (en) | 1921-10-10 |
| GB147854A (en) | 1921-11-09 |
| DE348911C (en) | 1922-02-21 |
| GB148447A (en) | 1921-12-12 |
| DE393047C (en) | 1924-03-28 |
| FR519268A (en) | 1921-06-07 |
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