FR73213E - Structure d'amplificateurs à ondes progressives - Google Patents

Structure d'amplificateurs à ondes progressives

Info

Publication number
FR73213E
FR73213E FR755436A FR755436A FR73213E FR 73213 E FR73213 E FR 73213E FR 755436 A FR755436 A FR 755436A FR 755436 A FR755436 A FR 755436A FR 73213 E FR73213 E FR 73213E
Authority
FR
France
Prior art keywords
traveling wave
wave amplifiers
amplifiers
traveling
wave
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
Application number
FR755436A
Other languages
English (en)
Inventor
Douglas Cecil Rogers
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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.)
Filing date
Publication date
Priority claimed from GB839453A external-priority patent/GB755834A/en
Priority claimed from GB18181/54A external-priority patent/GB787181A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR73213E publication Critical patent/FR73213E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/029—Schematic arrangements for beam forming
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
    • C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
    • C07D261/06—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members
    • C07D261/10—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D261/18—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
    • C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
    • C07D317/62—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to atoms of the carbocyclic ring
    • C07D317/66—Nitrogen atoms not forming part of a nitro radical
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/0404—Control of fluid pressure without auxiliary power with two or more controllers mounted in parallel
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/125—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • 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
    • 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
    • H01J23/06—Electron or ion guns
    • H01J23/065—Electron or ion guns producing a solid cylindrical beam
    • 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
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • 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
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing
    • 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
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
    • H01J23/42—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit the interaction circuit being a helix or a helix-derived slow-wave structure
    • 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
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
FR755436A 1953-03-26 1958-01-08 Structure d'amplificateurs à ondes progressives Expired FR73213E (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB328589X 1953-03-26
GB839453A GB755834A (en) 1953-03-26 1953-03-26 Improvements in or relating to the coupling of a helix in a travelling wave tube or the like to a waveguide
GB28268/53A GB762106A (en) 1953-03-26 1953-10-14 Improvements in or relating to travelling wave tubes
GB18181/54A GB787181A (en) 1953-03-26 1954-06-21 Improvements in or relating to travelling wave tubes
DEL19900A DE1001360B (de) 1953-03-26 1954-09-14 Ankopplungsanordnung fuer Wanderfeldroehren

Publications (1)

Publication Number Publication Date
FR73213E true FR73213E (fr) 1960-09-23

Family

ID=61021422

Family Applications (13)

Application Number Title Priority Date Filing Date
FR66255D Expired FR66255E (fr) 1953-03-26 1954-03-26 Structure d'amplificateurs à ondes progressives
FR66226D Expired FR66226E (fr) 1953-03-26 1954-03-26 Structure d'amplificateurs à ondes progressives
FR66266D Expired FR66266E (fr) 1953-03-26 1954-04-24 Panneaux de signalisation routière ou publicitaire
FR67269D Expired FR67269E (fr) 1953-03-26 1954-10-13 Structures d'amplificateurs à ondes progressives
FR67270D Expired FR67270E (fr) 1953-03-26 1954-10-13 Structure d'amplificateurs à ondes progressives
FR68866D Expired FR68866E (fr) 1953-03-26 1955-06-21 Structure d'amplificateurs à ondes progressives
FR69376D Expired FR69376E (fr) 1953-03-26 1955-09-13 Structure d'amplificateurs à ondes progressives
FR69772D Expired FR69772E (fr) 1953-03-26 1955-09-16 Structure d'amplificateurs à ondes progressives
FR70719D Expired FR70719E (fr) 1953-03-26 1956-06-01 Structure d'amplificateurs à ondes progressives
FR72041D Expired FR72041E (fr) 1953-03-26 1957-05-27 Structure d'amplificateurs à ondes progressives
FR755344A Expired FR73056E (fr) 1953-03-26 1958-01-07 Structure d'amplificateurs à ondes progressives
FR755436A Expired FR73213E (fr) 1953-03-26 1958-01-08 Structure d'amplificateurs à ondes progressives
FR772009A Expired FR73991E (fr) 1953-03-26 1958-08-06 Structure d'amplificateurs à ondes progressives

Family Applications Before (11)

Application Number Title Priority Date Filing Date
FR66255D Expired FR66255E (fr) 1953-03-26 1954-03-26 Structure d'amplificateurs à ondes progressives
FR66226D Expired FR66226E (fr) 1953-03-26 1954-03-26 Structure d'amplificateurs à ondes progressives
FR66266D Expired FR66266E (fr) 1953-03-26 1954-04-24 Panneaux de signalisation routière ou publicitaire
FR67269D Expired FR67269E (fr) 1953-03-26 1954-10-13 Structures d'amplificateurs à ondes progressives
FR67270D Expired FR67270E (fr) 1953-03-26 1954-10-13 Structure d'amplificateurs à ondes progressives
FR68866D Expired FR68866E (fr) 1953-03-26 1955-06-21 Structure d'amplificateurs à ondes progressives
FR69376D Expired FR69376E (fr) 1953-03-26 1955-09-13 Structure d'amplificateurs à ondes progressives
FR69772D Expired FR69772E (fr) 1953-03-26 1955-09-16 Structure d'amplificateurs à ondes progressives
FR70719D Expired FR70719E (fr) 1953-03-26 1956-06-01 Structure d'amplificateurs à ondes progressives
FR72041D Expired FR72041E (fr) 1953-03-26 1957-05-27 Structure d'amplificateurs à ondes progressives
FR755344A Expired FR73056E (fr) 1953-03-26 1958-01-07 Structure d'amplificateurs à ondes progressives

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR772009A Expired FR73991E (fr) 1953-03-26 1958-08-06 Structure d'amplificateurs à ondes progressives

Country Status (7)

Country Link
US (5) US2890370A (fr)
BE (7) BE570152A (fr)
CH (5) CH322461A (fr)
DE (4) DE1099093B (fr)
FR (13) FR66255E (fr)
GB (6) GB742070A (fr)
NL (4) NL200290A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514197A1 (fr) * 1981-10-07 1983-04-08 Varian Associates Tube micro-onde a faisceau lineaire reglable focalise par aimant permanent
FR2641899A1 (fr) * 1989-01-17 1990-07-20 Thomson Tubes Electroniques Canon a electrons muni d'un dispositif actif produisant un champ magnetique au voisinage de la cathode
EP0701266A3 (fr) * 1994-09-07 1998-04-01 Eev Limited Dispositifs de cavités

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654952A (en) * 1951-03-01 1953-10-13 Philip O Solon Ellipsograph
US2940020A (en) * 1952-04-08 1960-06-07 Int Standard Electric Corp Focusing magnet for long electron beams
DE1232532B (de) * 1956-07-11 1967-01-19 W App Nfabriek N V As Druckregler fuer Brenngase
US3027484A (en) * 1958-03-29 1962-03-27 Kobe Kogyo Kabushiki Kaisha Periodic magnetic focussing system for travelling wave tubes
DE1276217B (de) * 1958-06-25 1968-08-29 Siemens Ag Elektronenstrahlroehre mit Geschwindigkeitsmodulation, insbesondere Lauffeldroehre
GB869714A (en) * 1958-12-17 1961-06-07 Mullard Ltd Travelling-wave tubes
US3062983A (en) * 1959-04-28 1962-11-06 Gen Electric High frequency energy interchange device
DE1090732B (de) * 1959-05-02 1960-10-13 Telefunken Gmbh Koaxiale Ankoppelvorrichtung fuer eine Hochfrequenzroehre
US3032677A (en) * 1959-05-08 1962-05-01 Raytheon Co Traveling wave tubes
DE1136425B (de) * 1959-07-17 1962-09-13 Philips Nv Anordnung zum Ankoppeln der wendelfoermigen Verzoegerungsleitung einer Lauffeldroehre an einen quer zur Wendelachse verlaufenden Hohlleiter
IT699974A (fr) * 1959-12-10
US3134925A (en) * 1960-09-12 1964-05-26 Westinghouse Electric Corp Magnetic structure for providing smooth uniform magnetic field distribution in traveling wave tubes
US3211947A (en) * 1962-05-14 1965-10-12 Bloom Stanley Noise reduction of traveling-wave tubes by circuit refrigeration
US3324337A (en) * 1963-12-02 1967-06-06 Varian Associates High frequency electron discharge device and focusing means therefor
GB1145469A (en) * 1967-08-24 1969-03-12 Standard Telephones Cables Ltd Cooler for a travelling wave tube
JPS5123146B1 (fr) * 1970-12-04 1976-07-14
US5332947A (en) * 1992-05-13 1994-07-26 Litton Systems, Inc. Integral polepiece RF amplification tube for millimeter wave frequencies

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22389E (en) * 1940-07-13 1943-11-02 Electron beam concentrating
NL187376B (nl) * 1946-01-11 Northern Telecom Ltd Telefoonspraaknetwerk.
NL135247C (fr) * 1946-10-22
FR954564A (fr) * 1946-10-22 1950-01-03
BE479858A (fr) * 1947-01-25
US2578434A (en) * 1947-06-25 1951-12-11 Rca Corp High-frequency electron discharge device of the traveling wave type
US2632130A (en) * 1947-11-28 1953-03-17 Joseph F Hull High current density beam tube
US2637775A (en) * 1948-03-16 1953-05-05 Rca Corp Coupling of a helical conductor to a wave guide
US2611102A (en) * 1948-11-13 1952-09-16 Sylvania Electric Prod Traveling wave tube
FR1012374A (fr) * 1949-07-27 1952-07-09 Perfectionnements à la construction des tubes électroniques à ondes progressives
FR998819A (fr) * 1949-10-14 1952-01-23 Csf Perfectionnements au couplage des tubes à propagation d'onde linéaires avec leurs circuits d'entrée et de sortie
US2730649A (en) * 1950-02-04 1956-01-10 Itt Traveling wave amplifier
NL89376C (fr) * 1950-06-17
FR1023060A (fr) * 1950-08-07 1953-03-13 Dispositif limiteur d'amplitude à très large bande en ultra-hautes fréquences
US2672571A (en) * 1950-08-30 1954-03-16 Univ Leland Stanford Junior High-frequency oscillator
US2803770A (en) * 1950-09-18 1957-08-20 Fernseh Gmbh Electron discharge tube apparatus
US2774006A (en) * 1950-10-14 1956-12-11 Univ Leland Stanford Junior Travelling wave tube apparatus
US2773213A (en) * 1951-03-13 1956-12-04 Rca Corp Electron beam tubes
US2797353A (en) * 1951-06-15 1957-06-25 Bell Telephone Labor Inc Traveling wave type electron discharge devices
US2791711A (en) * 1951-08-24 1957-05-07 Research Corp Apparatus for generating hollow electron beams
DE970404C (de) * 1951-12-05 1958-09-18 Telefunken Gmbh Lauffeldroehre
US2749472A (en) * 1952-01-02 1956-06-05 Univ Leland Stanford Junior Travelling wave tubes
DE936882C (de) * 1952-03-09 1955-12-22 Telefunken Gmbh Ankopplungsanordnung
US2758244A (en) * 1952-06-02 1956-08-07 Rca Corp Electron beam tubes
NL178756B (nl) * 1952-06-02 Mitsubishi Heavy Ind Ltd Werkwijze en model voor het vervaardigen van gietvormen door middel van vacuuem.
USRE24794E (en) * 1952-06-12 1960-03-15 quate
US2812467A (en) * 1952-10-10 1957-11-05 Bell Telephone Labor Inc Electron beam system
US2741718A (en) * 1953-03-10 1956-04-10 Sperry Rand Corp High frequency apparatus
US2836758A (en) * 1953-10-12 1958-05-27 Varian Associates Electron discharge device
US2809321A (en) * 1953-12-30 1957-10-08 Hughes Aircraft Co Traveling-wave tube

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514197A1 (fr) * 1981-10-07 1983-04-08 Varian Associates Tube micro-onde a faisceau lineaire reglable focalise par aimant permanent
FR2641899A1 (fr) * 1989-01-17 1990-07-20 Thomson Tubes Electroniques Canon a electrons muni d'un dispositif actif produisant un champ magnetique au voisinage de la cathode
EP0379403A1 (fr) * 1989-01-17 1990-07-25 Thomson Tubes Electroniques Canon à électrons muni d'un dispositif produisant un champ magnétique au voisinage de la cathode
US5109179A (en) * 1989-01-17 1992-04-28 Thomson Tubes Electroniques Electron gun provided with a device producing a magnetic field in the neighborhood of a cathode
EP0701266A3 (fr) * 1994-09-07 1998-04-01 Eev Limited Dispositifs de cavités

Also Published As

Publication number Publication date
FR69376E (fr) 1958-11-06
CH328589A (de) 1958-03-15
FR68866E (fr) 1958-06-11
BE570152A (fr) 1900-01-01
BE529619A (fr) 1900-01-01
DE1099093B (de) 1961-02-09
GB762106A (en) 1956-11-21
BE541278A (fr) 1900-01-01
FR67270E (fr) 1958-02-19
FR66266E (fr) 1956-06-28
US2890370A (en) 1959-06-09
BE541462A (fr) 1900-01-01
CH322461A (de) 1957-06-15
US2918593A (en) 1959-12-22
GB787603A (en) 1957-12-11
NL230187A (fr) 1900-01-01
CH334859A (de) 1958-12-15
FR67269E (fr) 1958-02-19
DE1109272B (de) 1961-06-22
GB742070A (en) 1955-12-21
BE539158A (fr) 1900-01-01
FR73056E (fr) 1960-09-22
GB836219A (en) 1960-06-01
NL191459A (fr) 1900-01-01
CH351679A (de) 1961-01-31
GB831514A (en) 1960-03-30
US2824996A (en) 1958-02-25
FR72041E (fr) 1960-03-21
DE1001360B (de) 1957-01-24
BE527620A (fr) 1900-01-01
NL200290A (fr) 1900-01-01
NL200402A (fr) 1900-01-01
FR70719E (fr) 1959-07-10
DE1108336B (de) 1961-06-08
GB799236A (en) 1958-08-06
CH336509A (de) 1959-02-28
US2871392A (en) 1959-01-27
FR69772E (fr) 1958-12-30
FR66226E (fr) 1956-06-05
US2908843A (en) 1959-10-13
BE532535A (fr) 1900-01-01
FR66255E (fr) 1956-06-28
FR73991E (fr) 1960-10-31

Similar Documents

Publication Publication Date Title
FR67270E (fr) Structure d'amplificateurs à ondes progressives
CH334111A (fr) Tube à ondes progressives
FR979203A (fr) Amplificateurs à ondes progressives
FR1111547A (fr) Circuits pour ondes lentes pour tubes à ondes progressives
FR979889A (fr) Amplificateurs à ondes progressives
FR1118798A (fr) Tube à ondes progressives
FR1131007A (fr) Tube à ondes progressives à haut degré d'amplification
FR67870E (fr) Amplificateur d'ondes électriques
FR1159105A (fr) Tube amplificateur à ondes progressives
FR68751E (fr) Structure d'amplificateurs à ondes progressives
FR1131125A (fr) Atténuateur d'hyperfréquences pour tubes à ondes progressives
FR1133939A (fr) Dispositifs électroniques à ondes progressives
FR1098804A (fr) Structure d'amplificateurs à ondes progressives
FR1111098A (fr) Amplificateurs à ondes progressives
FR1132464A (fr) Tube amplificateur à ondes progressives
FR1076379A (fr) Tube à ondes progressives
FR1109384A (fr) Perfectionnements aux guides d'ondes
FR1115719A (fr) Raccordements pour guide d'ondes
FR1115740A (fr) Tube à ondes progressives
FR1096733A (fr) Tube à ondes progressives
FR1147080A (fr) Amplificateur à ondes progressives
FR1080960A (fr) Amplificateur d'ondes
FR1115741A (fr) Tube à ondes progressives perfectionné
FR1172964A (fr) Tubes à ondes progressives
FR1178642A (fr) Tubes amplificateurs à ondes progressives