BE47478A - - Google Patents
Info
- Publication number
- BE47478A BE47478A BE47478DA BE47478A BE 47478 A BE47478 A BE 47478A BE 47478D A BE47478D A BE 47478DA BE 47478 A BE47478 A BE 47478A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
- H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB248039A GB524225A (en) | 1939-01-24 | 1939-01-24 | Improvements in or relating to electric oscillators |
Publications (1)
Publication Number | Publication Date |
---|---|
BE47478A true BE47478A (de) |
Family
ID=9740297
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE474578D BE474578A (de) | 1939-01-24 | ||
BE47478D BE47478A (de) | 1939-01-24 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE474578D BE474578A (de) | 1939-01-24 |
Country Status (3)
Country | Link |
---|---|
BE (2) | BE47478A (de) |
GB (1) | GB524225A (de) |
NL (1) | NL63578C (de) |
-
0
- BE BE474578D patent/BE474578A/xx unknown
- NL NL63578D patent/NL63578C/xx active
- BE BE47478D patent/BE47478A/xx unknown
-
1939
- 1939-01-24 GB GB248039A patent/GB524225A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL63578C (de) | |
GB524225A (en) | 1940-08-01 |
BE474578A (de) |