FR661978A - Improvements to heterodynes and combined high frequency transformers for large and small waves - Google Patents
Improvements to heterodynes and combined high frequency transformers for large and small wavesInfo
- Publication number
- FR661978A FR661978A FR661978DA FR661978A FR 661978 A FR661978 A FR 661978A FR 661978D A FR661978D A FR 661978DA FR 661978 A FR661978 A FR 661978A
- Authority
- FR
- France
- Prior art keywords
- heterodynes
- high frequency
- combined high
- frequency transformers
- small waves
- 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 |
---|---|---|---|
FR661978T | 1928-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR661978A true FR661978A (en) | 1929-08-01 |
Family
ID=9011225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR661978D Expired FR661978A (en) | 1928-10-10 | 1928-10-10 | Improvements to heterodynes and combined high frequency transformers for large and small waves |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR661978A (en) |
-
1928
- 1928-10-10 FR FR661978D patent/FR661978A/en not_active Expired
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