GB860451A - Travelling-wave tubes - Google Patents

Travelling-wave tubes

Info

Publication number
GB860451A
GB860451A GB2465059A GB2465059A GB860451A GB 860451 A GB860451 A GB 860451A GB 2465059 A GB2465059 A GB 2465059A GB 2465059 A GB2465059 A GB 2465059A GB 860451 A GB860451 A GB 860451A
Authority
GB
United Kingdom
Prior art keywords
helix
disc
copper
flange
section
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
GB2465059A
Inventor
Frederick Theodor Buhlmann
Roger Woodford Kersey
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.)
Philips Components Ltd
Original Assignee
Mullard Ltd
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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB2465059A priority Critical patent/GB860451A/en
Publication of GB860451A publication Critical patent/GB860451A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H01J23/26—Helical slow-wave structures; Adjustment therefor

Landscapes

  • Microwave Tubes (AREA)

Abstract

860,451. Travelling wave tubes. MULLARD Ltd. July 17, 1959, No. 24650/59. Class 39(1). [Also in Group XXII] A travelling wave tube comprises an apertured metal disc D having a circular flange E and a helix having a main delay line section C, a quarter wave matching section B and a plurality of closely wound helical turns (in contact) which are brazed together to form a hollow cylinder which is engaged at one end by flange E and is brazed thereto thus locating the disc relative to the cylinder. The end section A of the tungsten wire helix and the inner surface of the flange of the disc are plated with gold, or less preferably, with copper, nickel or platinum or alloys thereof, e.g. by electroplating, or less preferably are painted with a colloidal suspension of gold. The helix may be glazed. The flanged metal disc is made of copper-nickel alloy. A prior art arrangement in which a tungsten wire helix has a #/4 impedance matching section of about one third of a turn at one end which is spot welded at its free end to a metal tube of copper nickel alloy is referred to. Specification 797,352 is referred to.
GB2465059A 1959-07-17 1959-07-17 Travelling-wave tubes Expired GB860451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2465059A GB860451A (en) 1959-07-17 1959-07-17 Travelling-wave tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2465059A GB860451A (en) 1959-07-17 1959-07-17 Travelling-wave tubes

Publications (1)

Publication Number Publication Date
GB860451A true GB860451A (en) 1961-02-08

Family

ID=10215073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2465059A Expired GB860451A (en) 1959-07-17 1959-07-17 Travelling-wave tubes

Country Status (1)

Country Link
GB (1) GB860451A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576460A (en) * 1968-08-08 1971-04-27 Varian Associates Impedance match for periodic microwave circuits and tubes using same
US3729644A (en) * 1970-12-04 1973-04-24 Nippon Electric Co Helix traveling-wave tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576460A (en) * 1968-08-08 1971-04-27 Varian Associates Impedance match for periodic microwave circuits and tubes using same
US3729644A (en) * 1970-12-04 1973-04-24 Nippon Electric Co Helix traveling-wave tube

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