FR993364A - Device for generating, amplifying or modulating UHFs and tube suitable for such a device - Google Patents

Device for generating, amplifying or modulating UHFs and tube suitable for such a device

Info

Publication number
FR993364A
FR993364A FR993364DA FR993364A FR 993364 A FR993364 A FR 993364A FR 993364D A FR993364D A FR 993364DA FR 993364 A FR993364 A FR 993364A
Authority
FR
France
Prior art keywords
uhfs
modulating
amplifying
generating
tube suitable
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
Other languages
French (fr)
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.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR993364A publication Critical patent/FR993364A/en
Expired legal-status Critical Current

Links

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
    • 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
FR993364D 1948-08-19 1949-08-17 Device for generating, amplifying or modulating UHFs and tube suitable for such a device Expired FR993364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL277503X 1948-08-19

Publications (1)

Publication Number Publication Date
FR993364A true FR993364A (en) 1951-10-30

Family

ID=19782178

Family Applications (1)

Application Number Title Priority Date Filing Date
FR993364D Expired FR993364A (en) 1948-08-19 1949-08-17 Device for generating, amplifying or modulating UHFs and tube suitable for such a device

Country Status (6)

Country Link
US (1) US2619614A (en)
BE (1) BE490688A (en)
CH (1) CH277503A (en)
FR (1) FR993364A (en)
GB (1) GB671422A (en)
NL (2) NL141983B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE550314C (en) * 1932-05-07 Sueddeutsche Telefon App Kabel Cathode tubes in which the grid or anode or both are arranged in the electron path in such a way that, viewed from the cathode, parts of the grid and the anode alternate with one another
US1792219A (en) * 1926-02-27 1931-02-10 Siemens Ag Method of securing grid wires
US2075202A (en) * 1934-12-12 1937-03-30 Philips Nv Electron discharge tube
US2460062A (en) * 1945-11-23 1949-01-25 Philco Corp Grid controlled electron tube

Also Published As

Publication number Publication date
NL72289C (en)
NL141983B (en)
GB671422A (en) 1952-05-07
BE490688A (en)
CH277503A (en) 1951-08-31
US2619614A (en) 1952-11-25

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