NL17963C - - Google Patents
Info
- Publication number
- NL17963C NL17963C NL29985A NL29985A NL17963C NL 17963 C NL17963 C NL 17963C NL 29985 A NL29985 A NL 29985A NL 29985 A NL29985 A NL 29985A NL 17963 C NL17963 C NL 17963C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
-
- 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
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8827/25A GB247774A (en) | 1925-04-02 | 1925-04-02 | Improvements in vacuum tube systems for the transmission of high frequency signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL17963C true NL17963C (de) | 1928-04-15 |
Family
ID=9859973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL29985A NL17963C (de) | 1925-04-02 | 1925-04-21 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1565505A (de) |
| DE (1) | DE547268C (de) |
| FR (1) | FR598212A (de) |
| GB (1) | GB247774A (de) |
| NL (1) | NL17963C (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2538217A (en) * | 1945-09-29 | 1951-01-16 | Kelley Koett Mfg Company | X-ray apparatus |
| US2472157A (en) * | 1945-11-01 | 1949-06-07 | Wiegand Co Edwin L | Control system |
| NL295488A (de) * | 1962-07-19 | |||
| US3718862A (en) * | 1969-06-30 | 1973-02-27 | Sound Syst Int Inc | Wireless microphone and adapter kit |
-
1924
- 1924-08-14 US US731906A patent/US1565505A/en not_active Expired - Lifetime
-
1925
- 1925-04-02 GB GB8827/25A patent/GB247774A/en not_active Expired
- 1925-04-10 DE DEI26046D patent/DE547268C/de not_active Expired
- 1925-04-21 NL NL29985A patent/NL17963C/xx active
- 1925-05-14 FR FR598212D patent/FR598212A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1565505A (en) | 1925-12-15 |
| DE547268C (de) | 1932-03-23 |
| FR598212A (fr) | 1925-12-09 |
| GB247774A (en) | 1926-02-25 |