FR879552A - Amplificateur neutrodyne à haute ou à moyenne fréquence et son utilisation dans un montage réflexe - Google Patents

Amplificateur neutrodyne à haute ou à moyenne fréquence et son utilisation dans un montage réflexe

Info

Publication number: FR879552A
Authority: FR; France
Prior art keywords: neutrodyne; amplifier; medium frequency; reflex assembly; reflex
Prior art date: 1941-02-24
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

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

Priority date (The priority date 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 date listed.)

1941-02-24

Filing date

1942-02-23

Publication date

1943-02-26

1942-02-23 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1943-02-26 Application granted granted Critical

1943-02-26 Publication of FR879552A publication Critical patent/FR879552A/fr

Status Expired legal-status Critical Current

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
- H03F1/08—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
- 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
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/22—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with tubes only
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/46—Reflex amplifiers
- H03F3/48—Reflex amplifiers with tubes only

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Amplifiers (AREA)

FR879552D 1941-02-24 1942-02-23 Amplificateur neutrodyne à haute ou à moyenne fréquence et son utilisation dans un montage réflexe Expired FR879552A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL879552X		1941-02-24

Publications (1)

Publication Number	Publication Date
FR879552A true FR879552A (fr)	1943-02-26

Family

ID=19851523

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR879552D Expired FR879552A (fr)	1941-02-24	1942-02-23	Amplificateur neutrodyne à haute ou à moyenne fréquence et son utilisation dans un montage réflexe

Country Status (4)

Country	Link
BE (1)	BE444624A (fr)
DE (1)	DE864276C (fr)
FR (1)	FR879552A (fr)
NL (2)	NL58236C (fr)

0
- BE BE444624D patent/BE444624A/fr unknown
- NL NL55223D patent/NL55223C/xx active
- NL NL58236D patent/NL58236C/xx active
1942
- 1942-02-21 DE DEN2297D patent/DE864276C/de not_active Expired
- 1942-02-23 FR FR879552D patent/FR879552A/fr not_active Expired

Also Published As

Publication number	Publication date
NL58236C (fr)
NL55223C (fr)
DE864276C (de)	1953-01-22
BE444624A (fr)

Similar Documents

Publication	Publication Date	Title
FR55364E (fr)	1952-06-27	Perfectionnement aux commandes irréversibles
FR868278A (fr)	1941-12-26	Perfectionnement apporté aux aéromoteurs et hélices propulsives
FR884047A (fr)	1943-07-30	Systèmes amplificateurs d'ondes électriques
FR898262A (fr)	1945-04-18	Montage amplificateur
FR879552A (fr)	1943-02-26	Amplificateur neutrodyne à haute ou à moyenne fréquence et son utilisation dans un montage réflexe
FR890345A (fr)	1944-02-04	Perfectionnements aux systèmes amplificateurs à plusieurs lampes électroniques
FR883747A (fr)	1943-07-13	Montage amplificateur équilibré
FR947928A (fr)	1949-07-18	Amplificateur haute fréquence
FR881084A (fr)	1943-04-14	Montage amplificateur à basse fréquence
FR876563A (fr)	1942-11-10	Perfectionnements aux sabots et galoches
FR941583A (fr)	1949-01-14	Gazogènes.-ensembles et dispositions spéciales
FR51930E (fr)	1943-06-01	Charpente et baraque démontables
FR893919A (fr)	1944-11-14	Tube amplificateur et son montage
FR875416A (fr)	1942-09-21	Perfectionnements aux pompes et aux compresseurs
FR855241A (fr)	1940-05-06	Perfectionnements aux fusils et carabines
FR877310A (fr)	1942-12-03	Turbo-compresseur
ES155917A1 (es)	1943-04-01	Dispositivo de aviso sonoro y visual de final de hoja
ES153262A1 (es)	1943-03-01	Disposición amplificadora acoplada por capacidad y resistencia
FR941227A (fr)	1949-01-05	Dispositifs radiogoniométriques et analogues
FR892525A (fr)	1944-04-11	Membrane métallique extensible et compressible
FR990156A (fr)	1951-09-18	Perfectionnements au mode de repérage des fiches et fichiers
FR885988A (fr)	1943-09-30	Systèmes amplificateurs d'ondes électriques
FR873202A (fr)	1942-07-02	Montage amplificateur à haute fréquence
BE441587R (fr)	1941-06-30	perfectionnemens aux chambres photographiques et apapreils similaires
ES153274A1 (es)	1943-03-01	Un montaje amplificador de alta frecuencia