BE378350A - - Google Patents
Info
- Publication number
- BE378350A BE378350A BE378350DA BE378350A BE 378350 A BE378350 A BE 378350A BE 378350D A BE378350D A BE 378350DA BE 378350 A BE378350 A BE 378350A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B11/00—Rail joints
- E01B11/02—Dismountable rail joints
- E01B11/04—Flat fishplates
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/163—Special arrangements for the reduction of the damping of resonant circuits of receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Particle Accelerators (AREA)
- Near-Field Transmission Systems (AREA)
- Microwave Amplifiers (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US522210A US2009370A (en) | 1931-03-13 | 1931-03-13 | Frequency selective system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE378350A true BE378350A (pt-PT) |
Family
ID=24079922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE378350D BE378350A (pt-PT) | 1931-03-13 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2009370A (pt-PT) |
| BE (1) | BE378350A (pt-PT) |
| DE (1) | DE621205C (pt-PT) |
| GB (1) | GB378350A (pt-PT) |
| NL (1) | NL33606C (pt-PT) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2646500A (en) * | 1947-03-15 | 1953-07-21 | Rca Corp | High-frequency tuner |
-
0
- NL NL33606D patent/NL33606C/xx active
- BE BE378350D patent/BE378350A/xx unknown
-
1931
- 1931-03-13 US US522210A patent/US2009370A/en not_active Expired - Lifetime
-
1932
- 1932-03-12 DE DER84335D patent/DE621205C/de not_active Expired
- 1932-03-14 GB GB7531/32A patent/GB378350A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL33606C (pt-PT) | |
| US2009370A (en) | 1935-07-23 |
| GB378350A (en) | 1932-08-11 |
| DE621205C (de) | 1935-11-02 |