BE491242A - - Google Patents

Info

Publication number: BE491242A
Authority: BE; Belgium

Application number

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.)

1948-12-10

Publication of BE491242A publication Critical patent/BE491242A/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
- H01J25/36—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field
- H01J25/38—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field the forward travelling wave being utilised
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/11—Means for reducing noise

BE491242D 1948-12-10 BE491242A (US08066781-20111129-C00013.png)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US64669A US2707759A (en)	1948-12-10	1948-12-10	Electronic amplifier

Publications (1)

Publication Number	Publication Date
BE491242A true BE491242A (US08066781-20111129-C00013.png)

Family

ID=22057507

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE491242D BE491242A (US08066781-20111129-C00013.png)	1948-12-10

Country Status (6)

Country	Link
US (1)	US2707759A (US08066781-20111129-C00013.png)
BE (1)	BE491242A (US08066781-20111129-C00013.png)
CH (1)	CH276573A (US08066781-20111129-C00013.png)
DE (1)	DE814490C (US08066781-20111129-C00013.png)
FR (1)	FR992048A (US08066781-20111129-C00013.png)
GB (1)	GB701034A (US08066781-20111129-C00013.png)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2899594A (en) *		1959-08-11		johnson
DE974465C (de) *	1949-02-19	1961-01-05	Siemens Ag	Wanderfeldverstaerkerroehre
US2820172A (en) *	1949-06-21	1958-01-14	Bell Telephone Labor Inc	High frequency amplifying device
US2767344A (en) *	1949-12-30	1956-10-16	Bell Telephone Labor Inc	Electronic amplifier
DE972800C (de) *	1950-12-06	1959-09-24	Elektronik Ges Mit Beschraenkt	Elektronenroehre fuer laengs einer Verzoegerungsleitung fortschreitende sehr kurze elektromagnetische Wellen
NL158347B (nl) *	1951-01-04		Matsushita Electric Ind Co Ltd	Televisiezender voor het sequentieel en afwisselend per horizontale aftastperiode uitzenden van videosignalen voor monochromatische beelden behorende bij twee verschillende televisieprogramma's.
DE973327C (de) *	1951-04-19	1960-01-21	Standard Elek K Lorenz Ag	Wanderfeldwendelroehre mit selbsttragendem Roehrensystem
NL192715A (US08066781-20111129-C00013.png) *	1951-06-30
US2817037A (en) *	1951-08-04	1957-12-17	Rca Corp	Traveling wave electron tubes and circuits
DE962189C (de) *	1951-11-20	1957-04-18	Siemens Ag	Aus einem wendelfoermig gestalteten Draht od. dgl. bestehender Wellenleiter fuer Wanderfeldroehren oder andere Anordnungen fuer sehr hohe Frequenzen
US2843790A (en) *	1951-12-14	1958-07-15	Bell Telephone Labor Inc	Traveling wave amplifier
DE1026440B (de) *	1952-02-11	1958-03-20	Telefunken Gmbh	Schaltung zum Betrieb einer elektrischen Entladungsroehre fuer sehr kurze elektrische Wellen
US2987644A (en) *	1952-04-08	1961-06-06	Itt	Radio frequency impedance matching section
DE948994C (de) *	1952-04-08	1956-09-13	Siemens Ag	Elektronenroehre fuer sehr kurze Wellen
NL91447C (US08066781-20111129-C00013.png) *	1952-06-12
US2801360A (en) *	1952-08-23	1957-07-30	Bell Telephone Labor Inc	Traveling wave tube
NL179317B (nl) *	1952-10-17		Polaroid Corp	Fotografische filmeenheid voor het vormen van een kleurdiffusieoverdrachtsbeeld.
US2824257A (en) *	1953-03-03	1958-02-18	Gen Electric	Traveling wave tube
US2843793A (en) *	1953-03-30	1958-07-15	Bell Telephone Labor Inc	Electrostatic focusing of electron beams
US2843776A (en) *	1953-03-30	1958-07-15	Bell Telephone Labor Inc	Traveling wave tube electron gun
DE1127496B (de) *	1953-03-30	1962-04-12	Western Electric Co	Wanderfeldroehre
US2855537A (en) *	1953-04-29	1958-10-07	Bell Telephone Labor Inc	Electron beam focusing
US2905858A (en) *	1953-06-30	1959-09-22	Bell Telephone Labor Inc	Impedance matching by means of coupled helices
US2935640A (en) *	1954-03-24	1960-05-03	Hughes Aircraft Co	Traveling wave amplifier
US2834909A (en) *	1954-06-17	1958-05-13	Varian Associates	Traveling wave electron discharge device
US2957103A (en) *	1954-08-19	1960-10-18	Hughes Aircraft Co	High power microwave tube
US2889487A (en) *	1954-09-15	1959-06-02	Hughes Aircraft Co	Traveling-wave tube
BE541337A (US08066781-20111129-C00013.png) *	1954-09-16
US2887609A (en) *	1954-10-08	1959-05-19	Rca Corp	Traveling wave tube
US2823333A (en) *	1954-10-29	1958-02-11	Bell Telephone Labor Inc	Traveling wave tube
NL200546A (US08066781-20111129-C00013.png) *	1954-10-29
US2819424A (en) *	1954-12-02	1958-01-07	Hughes Aircraft Co	Electron gun for traveling wave tube
US2885593A (en) *	1954-12-07	1959-05-05	Bell Telephone Labor Inc	Coupled lines systems
US2822501A (en) *	1955-01-10	1958-02-04	Research Corp	Slow-wave guide for traveling wave tubes
US2943229A (en) *	1955-01-25	1960-06-28	Gen Electric	Slow wave structures
US2806975A (en) *	1955-04-01	1957-09-17	Hughes Aircraft Co	Transition from bifilar helix to waveguide for backward wave oscillator
US2925565A (en) *	1955-05-12	1960-02-16	Bell Telephone Labor Inc	Coaxial couplers
US2941112A (en) *	1955-07-25	1960-06-14	Gen Electric	Electric discharge device
US2859375A (en) *	1955-08-04	1958-11-04	Hughes Aircraft Co	Multifilar helix coupling
US2890369A (en) *	1956-10-02	1959-06-09	Sylvania Electric Prod	Attenuator
US3032676A (en) *	1957-02-19	1962-05-01	Raytheon Co	Traveling wave tubes
FR1235416A (fr) *	1959-05-26	1960-07-08	Csf	Perfectionnements aux tubes à ondes progressives type o
DE1264626B (de) *	1959-09-16	1968-03-28	Telefunken Patent	Halterungsanordnung fuer die Elektroden einer Lauffeldroehre, deren hohlzylindrischer Wechselwirkungsraum von einem elektrostatisch gebuendelt gefuehrten Elektronenhohlstrahl durchsetzt ist
US3032680A (en) *	1960-12-29	1962-05-01	Bell Telephone Labor Inc	Coaxial cavity magnetron
NL286786A (US08066781-20111129-C00013.png) *	1962-12-14	1965-02-10
US3383543A (en) *	1964-12-21	1968-05-14	Raytheon Co	Gridded ion-drain electrode structure for traveling wave devices
FR2075837A1 (US08066781-20111129-C00013.png) *	1969-12-16	1971-10-15	Thomson Csf

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE428911A (US08066781-20111129-C00013.png) *	1933-10-23
US2064469A (en) *	1933-10-23	1936-12-15	Rca Corp	Device for and method of controlling high frequency currents
NL62817C (US08066781-20111129-C00013.png) *	1940-05-04
FR57746E (US08066781-20111129-C00013.png) *	1947-01-09	1953-05-05
US2578434A (en) *	1947-06-25	1951-12-11	Rca Corp	High-frequency electron discharge device of the traveling wave type
FR951202A (fr) *	1947-08-01	1949-10-19	Csf	Tube destiné à la transmission d'ondes ultra-courtes et, plus particulièrement, à leur amplification

0
- BE BE491242D patent/BE491242A/xx unknown
1948
- 1948-12-10 US US64669A patent/US2707759A/en not_active Expired - Lifetime
1949
- 1949-07-25 DE DEP50027D patent/DE814490C/de not_active Expired
- 1949-08-09 CH CH276573D patent/CH276573A/de unknown
- 1949-08-09 FR FR992048D patent/FR992048A/fr not_active Expired
- 1949-12-09 GB GB31668/49A patent/GB701034A/en not_active Expired

Also Published As

Publication number	Publication date
FR992048A (fr)	1951-10-12
DE814490C (de)	1951-09-24
US2707759A (en)	1955-05-03
GB701034A (en)	1953-12-16
CH276573A (de)	1951-07-15

Publication	Publication Date	Title
FR993383A (US08066781-20111129-C00013.png)	1951-10-30
FR1604951A (US08066781-20111129-C00013.png)	1972-06-26
FR978304A (US08066781-20111129-C00013.png)	1951-04-12
AT165757B (US08066781-20111129-C00013.png)	1950-04-25
AT166638B (US08066781-20111129-C00013.png)	1950-08-25
AT165629B (US08066781-20111129-C00013.png)	1950-03-25
IT454388A (US08066781-20111129-C00013.png)
IT454687A (US08066781-20111129-C00013.png)
BE461649A (US08066781-20111129-C00013.png)
BE491662A (US08066781-20111129-C00013.png)
BE491242A (US08066781-20111129-C00013.png)
BE448428A (US08066781-20111129-C00013.png)
BE482415A (US08066781-20111129-C00013.png)
BE491284A (US08066781-20111129-C00013.png)
BE490298A (US08066781-20111129-C00013.png)
BE486897A (US08066781-20111129-C00013.png)
BE469104A (US08066781-20111129-C00013.png)
BE477919A (US08066781-20111129-C00013.png)
BE478011A (US08066781-20111129-C00013.png)
BE478240A (US08066781-20111129-C00013.png)
BE479349A (US08066781-20111129-C00013.png)	1948-01-31
NL77954C (US08066781-20111129-C00013.png)
NL69904C (US08066781-20111129-C00013.png)	1952-04-13
LU29137A1 (US08066781-20111129-C00013.png)	1948-09-06
BE429008A (US08066781-20111129-C00013.png)