BE380459A - - Google Patents
Info
- Publication number
- BE380459A BE380459A BE380459DA BE380459A BE 380459 A BE380459 A BE 380459A BE 380459D A BE380459D A BE 380459DA BE 380459 A BE380459 A BE 380459A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- H03H7/01—Frequency selective two-port networks
- H03H7/0138—Electrical filters or coupling circuits
- H03H7/0146—Coupling circuits between two tubes, not otherwise provided for
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microwave Amplifiers (AREA)
- Amplifiers (AREA)
- Microwave Tubes (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL369480X | 1930-06-21 | ||
| US545946A US1957542A (en) | 1930-06-21 | 1931-06-22 | Amplifying circuit arrangement with parallel supply |
| US678040A US2092881A (en) | 1930-06-21 | 1933-06-28 | Electron discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE380459A true BE380459A (th) |
Family
ID=31998808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE380459D BE380459A (th) | 1930-06-21 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2092881A (th) |
| BE (1) | BE380459A (th) |
| DE (1) | DE563558C (th) |
| GB (1) | GB369480A (th) |
| NL (1) | NL34771C (th) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757106C (de) * | 1937-04-01 | 1953-02-23 | Siemens & Halske A G | Strahlungsgekuehlter Heissleiter zur Regelung sehr kleiner Leistungen |
| US4984320A (en) * | 1989-04-17 | 1991-01-15 | Foot-Joy, Inc. | Shoe sole embossed composition and method |
-
0
- NL NL34771D patent/NL34771C/xx active
- BE BE380459D patent/BE380459A/xx unknown
-
1931
- 1931-06-13 DE DEN32221D patent/DE563558C/de not_active Expired
- 1931-06-15 GB GB17374/31A patent/GB369480A/en not_active Expired
-
1933
- 1933-06-28 US US678040A patent/US2092881A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL34771C (th) | |
| GB369480A (en) | 1932-03-24 |
| DE563558C (de) | 1932-11-07 |
| US2092881A (en) | 1937-09-14 |