FR857020A - Wave switch, especially for t transmitters. s. f. - Google Patents
Wave switch, especially for t transmitters. s. f.Info
- Publication number
- FR857020A FR857020A FR857020DA FR857020A FR 857020 A FR857020 A FR 857020A FR 857020D A FR857020D A FR 857020DA FR 857020 A FR857020 A FR 857020A
- Authority
- FR
- France
- Prior art keywords
- transmitters
- wave switch
- wave
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- H03J5/242—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 used exclusively for band selection
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR857020T | 1939-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR857020A true FR857020A (en) | 1940-08-22 |
Family
ID=9329215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR857020D Expired FR857020A (en) | 1939-03-17 | 1939-03-17 | Wave switch, especially for t transmitters. s. f. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR857020A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2903894A (en) * | 1954-01-22 | 1959-09-15 | Legros Robert Guy | Method and apparatus for the transmission and reception of radio signals on a large number of regularly spaced frequencies |
-
1939
- 1939-03-17 FR FR857020D patent/FR857020A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2903894A (en) * | 1954-01-22 | 1959-09-15 | Legros Robert Guy | Method and apparatus for the transmission and reception of radio signals on a large number of regularly spaced frequencies |
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