BE477470A - - Google Patents
Info
- Publication number
- BE477470A BE477470A BE477470DA BE477470A BE 477470 A BE477470 A BE 477470A BE 477470D A BE477470D A BE 477470DA BE 477470 A BE477470 A BE 477470A
- Authority
- BE
- Belgium
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
- H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
- H03C1/20—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to anode
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
- H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
- H03C1/22—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to same grid
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C7/00—Modulating electromagnetic waves
- H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
-
- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
- H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/38—Impedance-matching networks
- H03H7/383—Impedance-matching networks comprising distributed impedance elements together with lumped impedance elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR861403T | 1939-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE477470A true BE477470A (es) | 1948-05-30 |
Family
ID=32232260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE477470D BE477470A (es) | 1939-07-29 | 1947-11-20 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2523311A (es) |
| BE (1) | BE477470A (es) |
| CH (1) | CH271263A (es) |
| FR (1) | FR861403A (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB745947A (en) * | 1953-08-12 | 1956-03-07 | Marconi Wireless Telegraph Co | Improvements in or relating to wide band grid modulated thermionic valve amplifiers |
| DE951638C (de) * | 1954-08-27 | 1956-10-31 | Lorenz C Ag | Modulator, insbesondere in Gitterbasis-Schaltung, vorzugsweise fuer Dezimeterwellen und UKW |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2259658A (en) * | 1936-06-10 | 1941-10-21 | Philco Radio & Television Corp | Modulating system |
| US2301160A (en) * | 1937-12-31 | 1942-11-03 | Rca Corp | Modulation system |
| NL58874C (es) * | 1938-01-29 | |||
| GB542226A (en) * | 1940-07-30 | 1941-12-31 | Materiel Telephonique | Coupling circuits for electronic discharge devices |
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1939
- 1939-07-29 FR FR861403D patent/FR861403A/fr not_active Expired
-
1947
- 1947-08-16 CH CH271263D patent/CH271263A/fr unknown
- 1947-10-07 US US778446A patent/US2523311A/en not_active Expired - Lifetime
- 1947-11-20 BE BE477470D patent/BE477470A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2523311A (en) | 1950-09-26 |
| FR861403A (fr) | 1941-02-19 |
| CH271263A (fr) | 1950-10-15 |