NL246401A - - Google Patents
Info
- Publication number
- NL246401A NL246401A NL246401DA NL246401A NL 246401 A NL246401 A NL 246401A NL 246401D A NL246401D A NL 246401DA NL 246401 A NL246401 A NL 246401A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6016—Substation equipment, e.g. for use by subscribers including speech amplifiers in the receiver circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Push-Button Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK0036642 | 1959-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL246401A true NL246401A (en:Method) |
Family
ID=7220754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL246401D NL246401A (en:Method) | 1959-01-05 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH375045A (en:Method) |
| DE (1) | DE1075671B (en:Method) |
| NL (1) | NL246401A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1153425B (de) * | 1960-08-31 | 1963-08-29 | Siemens Ag | Schaltungsanordnung zum Ausgleich der unterschiedlichen Daempfung verschieden langerFernmelde-leitungen |
-
0
- DE DENDAT1075671D patent/DE1075671B/de active Pending
- NL NL246401D patent/NL246401A/xx unknown
-
1959
- 1959-12-09 CH CH8163659A patent/CH375045A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1075671B (de) | 1960-02-18 |
| CH375045A (de) | 1964-02-15 |