GB844729A - Improvements in or relating to electron discharge tubes - Google Patents

Improvements in or relating to electron discharge tubes

Info

Publication number
GB844729A
GB844729A GB3102258A GB3102258A GB844729A GB 844729 A GB844729 A GB 844729A GB 3102258 A GB3102258 A GB 3102258A GB 3102258 A GB3102258 A GB 3102258A GB 844729 A GB844729 A GB 844729A
Authority
GB
United Kingdom
Prior art keywords
glaze
helix
stoved
coating
glazing
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
GB3102258A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB844729A publication Critical patent/GB844729A/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
    • H01J23/16—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

  • Drying Of Solid Materials (AREA)
  • Insulating Bodies (AREA)

Abstract

844,729. Travelling wave tubes. TELEFUNKEN G.m.b.H. Sept. 29, 1958 [Oct. 8, 1957], No. 31022/58. Class 39(1). The helix 1 of a travelling wave tube is secured to insulating support rods 2 by a coating of stoved glaze, the glaze covering the entire surface of the rods and helix. As shown three ceramic rods 2 with strips or layers 4 of carbon or other lossy material and carrying the helix 1 is sprayed or dipped in glazing liquid and placed in a dryer, after which the glaze coating is stoved to form glaze bonds 3. While the tube envelope is being pumped out the layer of glaze covers the helix and lossy material 4 and prevents it from releasing occluded gases. When the stoved coating of glaze is only partly dried it may be coated with one or more additional layers of glaze. Different areas may be given different numbers of coatings of glaze. Glazing liquids of different viscosities may be used to control the thickness of the glaze layer either locally or over the whole assembly. A variation in thickness over the length of the glaze may match the electron beam velocity and wave velocity, e.g. by increasing the thickness of the glaze towards the collector end of the tube. In a modification the helix and support rods are assembled and temporarily stuck together by coating them at the areas of contact with partially dried crude glazing liquor ; the assembly is then further coated with an overall layer of glaze and stoved.
GB3102258A 1957-10-08 1958-09-29 Improvements in or relating to electron discharge tubes Expired GB844729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET14250A DE1029488B (en) 1957-10-08 1957-10-08 Arrangement for mutual displacement-proof fastening of system parts in an electrical discharge arrangement

Publications (1)

Publication Number Publication Date
GB844729A true GB844729A (en) 1960-08-17

Family

ID=7547586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3102258A Expired GB844729A (en) 1957-10-08 1958-09-29 Improvements in or relating to electron discharge tubes

Country Status (2)

Country Link
DE (1) DE1029488B (en)
GB (1) GB844729A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296712B (en) * 1961-05-18 1969-06-04 Western Electric Co Method for the fixed mounting of the helical windings of a traveling field helical tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296712B (en) * 1961-05-18 1969-06-04 Western Electric Co Method for the fixed mounting of the helical windings of a traveling field helical tube

Also Published As

Publication number Publication date
DE1029488B (en) 1958-05-08

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