FR945236A - Perfectionnements aux circuits électriques pour courants alternatifs - Google Patents
Perfectionnements aux circuits électriques pour courants alternatifsInfo
- Publication number
- FR945236A FR945236A FR945236DA FR945236A FR 945236 A FR945236 A FR 945236A FR 945236D A FR945236D A FR 945236DA FR 945236 A FR945236 A FR 945236A
- Authority
- FR
- France
- Prior art keywords
- electrical circuits
- alternating currents
- currents
- alternating
- circuits
- 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
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
- H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B11/00—Straight-bar knitting machines with fixed needles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
-
- 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
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Textile Engineering (AREA)
- Power Engineering (AREA)
- Knitting Machines (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB269321X | 1946-05-10 | ||
GB280147X | 1948-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR945236A true FR945236A (fr) | 1949-04-28 |
Family
ID=26258515
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR945236D Expired FR945236A (fr) | 1946-05-10 | 1947-04-16 | Perfectionnements aux circuits électriques pour courants alternatifs |
FR993566D Expired FR993566A (fr) | 1946-05-10 | 1949-02-19 | Perfectionnements aux machines à tricoter rectilignes à barres à aiguilles |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR993566D Expired FR993566A (fr) | 1946-05-10 | 1949-02-19 | Perfectionnements aux machines à tricoter rectilignes à barres à aiguilles |
Country Status (5)
Country | Link |
---|---|
US (1) | US2585804A (fr) |
CH (2) | CH269321A (fr) |
DE (1) | DE854985C (fr) |
FR (2) | FR945236A (fr) |
GB (2) | GB611858A (fr) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR741233A (fr) * | 1931-07-27 | 1933-02-08 | ||
DE604654C (de) * | 1932-07-22 | 1934-10-29 | Max Nebel | Flache Kulierwirkmaschine |
BE434339A (fr) * | 1938-04-05 |
-
1946
- 1946-05-10 GB GB14219/46A patent/GB611858A/en not_active Expired
-
1947
- 1947-04-09 CH CH269321D patent/CH269321A/fr unknown
- 1947-04-16 FR FR945236D patent/FR945236A/fr not_active Expired
-
1948
- 1948-02-21 GB GB5177/48A patent/GB654094A/en not_active Expired
-
1949
- 1949-02-19 FR FR993566D patent/FR993566A/fr not_active Expired
- 1949-02-21 CH CH280147D patent/CH280147A/fr unknown
- 1949-02-22 DE DEP34653A patent/DE854985C/de not_active Expired
- 1949-02-23 US US77836A patent/US2585804A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR993566A (fr) | 1951-11-02 |
DE854985C (de) | 1952-11-10 |
CH269321A (fr) | 1950-06-30 |
GB654094A (en) | 1951-06-06 |
US2585804A (en) | 1952-02-12 |
GB611858A (en) | 1948-11-04 |
CH280147A (fr) | 1952-01-15 |
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