BE459216A - - Google Patents
Info
- Publication number
- BE459216A BE459216A BE459216DA BE459216A BE 459216 A BE459216 A BE 459216A BE 459216D A BE459216D A BE 459216DA BE 459216 A BE459216 A BE 459216A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/14—Balanced arrangements
- H03D7/1416—Balanced arrangements with discharge tubes having more than two electrodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
- H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
- H03H2/008—Receiver or amplifier input circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL250225X | 1943-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE459216A true BE459216A (en) | 1946-01-05 |
Family
ID=19781056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE459216D BE459216A (en) | 1943-10-27 | 1945-07-05 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2595997A (en) |
| BE (1) | BE459216A (en) |
| CH (1) | CH250225A (en) |
| DE (1) | DE862028C (en) |
| FR (1) | FR920715A (en) |
| GB (1) | GB638004A (en) |
| NL (1) | NL68156C (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2011943A (en) * | 1933-01-26 | 1935-08-20 | Rca Corp | Ultra short wave reception |
| NL58874C (en) * | 1938-01-29 | |||
| US2307074A (en) * | 1938-09-22 | 1943-01-05 | George E Pray | Modulating circuit for high frequencies |
| US2382693A (en) * | 1940-02-24 | 1945-08-14 | Dallenbach Walter | Oscillator-modulator circuit |
| US2260844A (en) * | 1940-03-12 | 1941-10-28 | Gen Electric | Ultra high frequency converter |
| BE445613A (en) * | 1941-05-19 | |||
| US2479537A (en) * | 1942-12-30 | 1949-08-16 | Gen Electric | Detector-oscillator circuit for ultra high frequency receivers |
-
1943
- 1943-10-27 NL NL113693A patent/NL68156C/xx active
-
1944
- 1944-10-24 DE DEN2208D patent/DE862028C/en not_active Expired
- 1944-10-25 CH CH250225D patent/CH250225A/en unknown
-
1945
- 1945-07-05 BE BE459216D patent/BE459216A/xx unknown
-
1946
- 1946-01-26 FR FR920715D patent/FR920715A/en not_active Expired
- 1946-07-12 US US683001A patent/US2595997A/en not_active Expired - Lifetime
-
1947
- 1947-01-13 GB GB1097/47A patent/GB638004A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2595997A (en) | 1952-05-06 |
| CH250225A (en) | 1947-08-15 |
| NL68156C (en) | 1951-07-16 |
| GB638004A (en) | 1950-05-31 |
| FR920715A (en) | 1947-04-16 |
| DE862028C (en) | 1953-01-08 |