BE478054A - - Google Patents
Info
- Publication number
- BE478054A BE478054A BE478054DA BE478054A BE 478054 A BE478054 A BE 478054A BE 478054D A BE478054D A BE 478054DA BE 478054 A BE478054 A BE 478054A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- H03J7/042—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 with reactance tube
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- 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
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL127711A NL71104C (it) | 1946-09-20 | 1946-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE478054A true BE478054A (it) | 1948-06-11 |
Family
ID=37603039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE478054D BE478054A (it) | 1946-09-20 | 1947-12-11 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2530165A (it) |
| BE (1) | BE478054A (it) |
| DE (1) | DE810159C (it) |
| FR (1) | FR57843E (it) |
| GB (1) | GB629929A (it) |
| NL (1) | NL71104C (it) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2666182A (en) * | 1950-09-19 | 1954-01-12 | Rca Corp | Frequency control apparatus |
| US2962672A (en) * | 1955-11-28 | 1960-11-29 | Blasio Conrad G De | Dual-tube modulator and associated frequency-modulated crystal oscillator circuit therefor |
| US3054973A (en) * | 1958-05-26 | 1962-09-18 | Itt | Crystal controlled oscillator circuit with frequency control means |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2321269A (en) * | 1941-11-21 | 1943-06-08 | Rca Corp | Frequency modulation |
| BE471687A (it) * | 1942-07-11 |
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1946
- 1946-09-20 NL NL127711A patent/NL71104C/xx active
-
1947
- 1947-12-02 FR FR57843D patent/FR57843E/fr not_active Expired
- 1947-12-05 US US789972A patent/US2530165A/en not_active Expired - Lifetime
- 1947-12-11 BE BE478054D patent/BE478054A/xx unknown
- 1947-12-15 GB GB32980/47A patent/GB629929A/en not_active Expired
-
1948
- 1948-11-04 DE DEP20532D patent/DE810159C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE810159C (de) | 1951-08-06 |
| GB629929A (en) | 1949-09-30 |
| US2530165A (en) | 1950-11-14 |
| FR57843E (fr) | 1953-09-17 |
| NL71104C (it) | 1952-10-05 |