NL61935C - - Google Patents
Info
- Publication number
- NL61935C NL61935C NL61935DA NL61935C NL 61935 C NL61935 C NL 61935C NL 61935D A NL61935D A NL 61935DA NL 61935 C NL61935 C NL 61935C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
- H03J1/10—Rope drive; Chain drive
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US335708A US2255680A (en) | 1940-05-17 | 1940-05-17 | Variable permeability tuning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL61935C true NL61935C (xx) |
Family
ID=23312927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL61935D NL61935C (xx) | 1940-05-17 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2255680A (xx) |
| DE (1) | DE971975C (xx) |
| GB (1) | GB549459A (xx) |
| NL (1) | NL61935C (xx) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3227128A (en) * | 1966-01-04 | Indlca ixing m mechanism | ||
| NL59335C (xx) * | 1940-12-05 | |||
| BE446844A (xx) * | 1941-08-16 | |||
| DE942098C (de) * | 1942-09-10 | 1956-04-26 | Siemens Ag | Schiebevariometer mit Massekern fuer einen aus fester Kapazitaet und veraenderbarer Induktivitaet bestehenden Schwingkreis |
| US2417182A (en) * | 1942-10-24 | 1947-03-11 | Rca Corp | Short-wave permeability tuning system |
| US2424506A (en) * | 1942-10-24 | 1947-07-22 | Rca Corp | Permeability-tuned short-wave spread-band receiver |
| US2475032A (en) * | 1945-03-17 | 1949-07-05 | Rca Corp | Variable permeability tuning system |
| US2542579A (en) * | 1945-03-22 | 1951-02-20 | Admiral Corp | Connector |
| US2512258A (en) * | 1945-09-13 | 1950-06-20 | Colonial Radio Corp | Decimal push-button tuning system |
| US2531231A (en) * | 1945-12-04 | 1950-11-21 | Rca Corp | Variable permeability tuning device |
| US2505111A (en) * | 1946-03-20 | 1950-04-25 | Stanley A Hall | Tuning mechanism |
| US2525438A (en) * | 1946-04-01 | 1950-10-10 | Robert P Wuerfel | Circuit tuning unit |
| US2477749A (en) * | 1946-04-04 | 1949-08-02 | Aladdin Ind Inc | Inductor tuning system |
| US2438359A (en) * | 1946-08-01 | 1948-03-23 | Philco Corp | Television receiver circuits and apparatus |
| US2618707A (en) * | 1946-11-01 | 1952-11-18 | Raytheon Mfg Co | Combination radio receiver and hearing aid |
| US2508840A (en) * | 1947-04-19 | 1950-05-23 | Aladdin Ind Inc | Permeability tuner mechanism |
| US2520985A (en) * | 1947-10-22 | 1950-09-05 | Motorola Inc | Antenna coupling circuit |
| US2555475A (en) * | 1948-04-30 | 1951-06-05 | Rca Corp | Radio receiver tuning mechanism |
| US2543551A (en) * | 1948-06-10 | 1951-02-27 | Stackpole Carbon Co | Variable inductance core structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2113603A (en) * | 1931-05-07 | 1938-04-12 | Johnson Lab Inc | High-frequency inductance device |
| GB408271A (en) * | 1932-10-05 | 1934-04-05 | Edward John Wyborn | Improvements in or relating to permeability tuning for radio apparatus |
| GB434675A (en) * | 1933-04-22 | 1935-09-06 | Johnson Lab Inc | Improvements in or relating to tuning systems for wireless receiving apparatus and the like |
| US2038281A (en) * | 1934-03-05 | 1936-04-21 | Johnson Lab Inc | Radio receiving apparatus |
| DE757101C (de) * | 1938-10-06 | 1954-02-08 | Telefunken Gmbh | Anordnung zur Erzielung einer frequenzlinearen Abstimmungskurve bei einem Empfaenger |
| US2190048A (en) * | 1939-04-10 | 1940-02-13 | Johnson Lab Inc | Permeability-tuned oscillator tracking arrangement |
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0
- NL NL61935D patent/NL61935C/xx active
-
1940
- 1940-05-17 US US335708A patent/US2255680A/en not_active Expired - Lifetime
-
1941
- 1941-05-17 DE DER2944D patent/DE971975C/de not_active Expired
- 1941-05-19 GB GB6446/41A patent/GB549459A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE971975C (de) | 1959-05-06 |
| US2255680A (en) | 1941-09-09 |
| GB549459A (en) | 1942-11-23 |