FR857692A - - Google Patents
Info
- Publication number
- FR857692A FR857692A FR857692DA FR857692A FR 857692 A FR857692 A FR 857692A FR 857692D A FR857692D A FR 857692DA FR 857692 A FR857692 A FR 857692A
- Authority
- FR
- France
- 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
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
- H03J3/14—Visual indication, e.g. magic eye
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB231158X | 1938-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR857692A true FR857692A (pt) | 1940-09-24 |
Family
ID=10190360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR857692D Expired FR857692A (pt) | 1938-07-12 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH231158A (pt) |
| FR (1) | FR857692A (pt) |
| GB (1) | GB516891A (pt) |
-
0
- FR FR857692D patent/FR857692A/fr not_active Expired
-
1938
- 1938-07-12 GB GB20665/38A patent/GB516891A/en not_active Expired
-
1939
- 1939-07-05 CH CH231158D patent/CH231158A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH231158A (fr) | 1944-02-29 |
| GB516891A (en) | 1940-01-15 |