FR849835A - Perfectionnements aux montages pour ondes ultra-courtes - Google Patents
Perfectionnements aux montages pour ondes ultra-courtesInfo
- Publication number
- FR849835A FR849835A FR849835DA FR849835A FR 849835 A FR849835 A FR 849835A FR 849835D A FR849835D A FR 849835DA FR 849835 A FR849835 A FR 849835A
- Authority
- FR
- France
- Prior art keywords
- ultra
- short wave
- wave assemblies
- assemblies
- short
- 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
- 230000000712 assembly Effects 0.000 title 1
- 238000000429 assembly Methods 0.000 title 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/14—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means
- H03F1/16—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means in discharge-tube amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/02—Manually-operated control
- H03G5/04—Manually-operated control in untuned amplifiers
- H03G5/06—Manually-operated control in untuned amplifiers having discharge tubes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microwave Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE849813X | 1938-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR849835A true FR849835A (fr) | 1939-12-02 |
Family
ID=6775958
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR849813D Expired FR849813A (fr) | 1938-02-05 | 1939-02-03 | Régulateur de tonalité d'un amplificateur basse fréquence |
FR849835D Expired FR849835A (fr) | 1938-02-05 | 1939-02-04 | Perfectionnements aux montages pour ondes ultra-courtes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR849813D Expired FR849813A (fr) | 1938-02-05 | 1939-02-03 | Régulateur de tonalité d'un amplificateur basse fréquence |
Country Status (3)
Country | Link |
---|---|
US (1) | US2257274A (fr) |
FR (2) | FR849813A (fr) |
GB (1) | GB510226A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2511362A (en) * | 1938-12-20 | 1950-06-13 | Mercier Jean | Aircraft variable area wings using landing gear fairings |
US2453489A (en) * | 1944-08-12 | 1948-11-09 | Gen Electric | Ultra high frequency oscillator |
US2756334A (en) * | 1950-09-28 | 1956-07-24 | Hupp Corp | High frequency circuits and oscillators |
US2843828A (en) * | 1951-10-18 | 1958-07-15 | Avco Mfg Corp | Ultra-high-frequency converter for very-high-frequency television receiver |
-
1939
- 1939-01-18 GB GB1755/39A patent/GB510226A/en not_active Expired
- 1939-02-03 FR FR849813D patent/FR849813A/fr not_active Expired
- 1939-02-04 FR FR849835D patent/FR849835A/fr not_active Expired
- 1939-02-04 US US254536A patent/US2257274A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2257274A (en) | 1941-09-30 |
FR849813A (fr) | 1939-12-02 |
GB510226A (en) | 1939-07-28 |
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