GB671422A - Improvements in or relating to travelling-wave electron discharge tubes - Google Patents

Improvements in or relating to travelling-wave electron discharge tubes

Info

Publication number
GB671422A
GB671422A GB21299/49A GB2129949A GB671422A GB 671422 A GB671422 A GB 671422A GB 21299/49 A GB21299/49 A GB 21299/49A GB 2129949 A GB2129949 A GB 2129949A GB 671422 A GB671422 A GB 671422A
Authority
GB
United Kingdom
Prior art keywords
travelling
grid
relating
discharge tubes
electron discharge
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
GB21299/49A
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
Philips Electronics 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, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB671422A publication Critical patent/GB671422A/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

Abstract

671,422. Travelling-wave tubes. PHILIPS ELECTRICAL, Ltd. Aug. 11, 1949 [Aug. 19, 1948], No. 21299/49. Class 39 (i). A travelling-wave tube comprises a cylindrical cathode 2, a grid 3, a screen-grid 4 and one or more, e.g. six, coaxially placed grid-shaped electrodes 6 of flat spiral configuration, the whole surrounded by an anode 6. The stay rods of the grids and the spirals are in radial lines from the cathode outwards. The spiral is logarithmic with the circumferential travel proportional to the radius. The relationship between the total number of turns and the operating voltages is given.
GB21299/49A 1948-08-19 1949-08-11 Improvements in or relating to travelling-wave electron discharge tubes Expired GB671422A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB671422A true GB671422A (en) 1952-05-07

Family

ID=19782178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21299/49A Expired GB671422A (en) 1948-08-19 1949-08-11 Improvements in or relating to travelling-wave electron discharge tubes

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) NL72289C (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
BE490688A (en)
NL72289C (en)
CH277503A (en) 1951-08-31
FR993364A (en) 1951-10-30
US2619614A (en) 1952-11-25
NL141983B (en)

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