GB888957A - Travelling wave tube arrangement - Google Patents

Travelling wave tube arrangement

Info

Publication number
GB888957A
GB888957A GB18150/58A GB1815058A GB888957A GB 888957 A GB888957 A GB 888957A GB 18150/58 A GB18150/58 A GB 18150/58A GB 1815058 A GB1815058 A GB 1815058A GB 888957 A GB888957 A GB 888957A
Authority
GB
United Kingdom
Prior art keywords
accurately
glass envelope
travelling wave
magnet
wave tube
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
GB18150/58A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB888957A publication Critical patent/GB888957A/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
    • 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

Landscapes

  • Microwave Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

888,957. Travelling wave tubes. STANDARD TELEPHONES & CABLES Ltd. June 6, 1958 [June 8, 1957], No. 18150/58. Class 39(1) A travelling wave tube including a helix mounted within a precision bored glass envelope portion and an electron collector electrode sealed to one end of the glass envelope portion and having an external surface portion for radial location of the travelling wave tube in external apparatus, the external surface portion being accurately concentric with the bore of the glass envelope portion in which the electron collector electrode includes an internal conical member which projects towards the other end of the envelope portion and whose axis is accurately concentric with the said external surface portion providing means for accurately centering the electron collector electrode with respect to the glass envelope portion while they are being sealed together. The tube is mounted accurately in a magnetic focusing device of cylindrical form by means of two metal rings 12, 16 one of which has a turned up edge 13 to engage the inner surface of the magnet and the other of which engages an extension of the magnet and also has a radial extension serving as a stop which accurately locates the travelling wave tube axially. The glass envelope 10 has an accurately dimensioned and calibrated inner surface as has the coil or permanent magnet 18 and the members 13, 16 are accurately dimensioned and accurately coaxial, the axes of 10, 13, 16 coinciding accurately with one another and with the axis of the magnet 18. In assembly the seal between glass envelope 10 and sheet metal sleeve 12 is made on an ordinary sealing lathe after which the composite body is slipped on a mandrel inserted in a lathe and centering ring 13 is turned down. The collector 8 is sealed to glass envelope 10 by a centering mandrel 15, Fig. 2 using conical extension 17 as a centralising device (fits into a conical hole in the mandrel 15). Projections 16, 17 are in the same plane to get so it is stated 10 and 8 on the same axis. The pressed glass base 14 is welded by a roller seam welding machine or soldered to metal sleeve 12.
GB18150/58A 1957-06-08 1958-06-06 Travelling wave tube arrangement Expired GB888957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE888957X 1957-06-08

Publications (1)

Publication Number Publication Date
GB888957A true GB888957A (en) 1962-02-07

Family

ID=6834329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18150/58A Expired GB888957A (en) 1957-06-08 1958-06-06 Travelling wave tube arrangement

Country Status (1)

Country Link
GB (1) GB888957A (en)

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