NL27990C - - Google Patents
Info
- Publication number
- NL27990C NL27990C NL27990DA NL27990C NL 27990 C NL27990 C NL 27990C NL 27990D A NL27990D A NL 27990DA NL 27990 C NL27990 C NL 27990C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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)
- Amplifiers (AREA)
- General Induction Heating (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US205203A US1795194A (en) | 1927-07-12 | 1927-07-12 | Apparatus for amplifying electrical energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL27990C true NL27990C (de) |
Family
ID=22761234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL27990D NL27990C (de) | 1927-07-12 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1795194A (de) |
| DE (1) | DE544807C (de) |
| FR (1) | FR660695A (de) |
| GB (1) | GB293788A (de) |
| NL (1) | NL27990C (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977626C (de) * | 1951-04-04 | 1967-09-21 | Rca Corp | Kaskodeverstaerker fuer hohe Frequenzen |
-
0
- NL NL27990D patent/NL27990C/xx active
-
1927
- 1927-07-12 US US205203A patent/US1795194A/en not_active Expired - Lifetime
-
1928
- 1928-05-14 GB GB14112/28A patent/GB293788A/en not_active Expired
- 1928-06-02 DE DEI34540D patent/DE544807C/de not_active Expired
- 1928-07-12 FR FR660695D patent/FR660695A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR660695A (fr) | 1929-07-16 |
| US1795194A (en) | 1931-03-03 |
| DE544807C (de) | 1932-02-24 |
| GB293788A (en) | 1929-08-08 |