GB322827A - Improvements in vacuum electric tube devices - Google Patents

Improvements in vacuum electric tube devices

Info

Publication number
GB322827A
GB322827A GB2728528A GB2728528A GB322827A GB 322827 A GB322827 A GB 322827A GB 2728528 A GB2728528 A GB 2728528A GB 2728528 A GB2728528 A GB 2728528A GB 322827 A GB322827 A GB 322827A
Authority
GB
United Kingdom
Prior art keywords
cathode
grid
wires
electrodes
secured
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
GB2728528A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB2728528A priority Critical patent/GB322827A/en
Publication of GB322827A publication Critical patent/GB322827A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0002—Construction arrangements of electrode systems

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

322,827. Robinson, E. Y., and Associated Electrical Industries, Ltd. Sept. 22, 1928. Vacuum tubes.- One or more electrodes, e.g. the cathode and grid, are supported from the pinch 35, and the anode, 34 is laterally supported and registered with respect to these electrodes by means of insulating cross pieces 41, 42 at both ends of the electrodes and by one or more standards 39 secured at 40 to the re-entrant tube and attached to the anode above that insulating cross piece 42 which is adjacent the pinch. The standards 39 shown are of hairpin shape, and function as described in Specification 292,664. The cross pieces 41, 42 are secured to the anode-supporting wires 38 by metal loops 15 welded to the wires. The bight of the cathode heating-filament is supported by a spring 37 secured to a glass bead carried by wires attached to grid-supporting wires. The cathode consists of a nickel tube coated with a mixture of barium and strontium oxides, and the tungsten hair-pin filament is coated with porcelain, as described in Specification 278,787. The grids described, 'proceeding outwards from the cathode, consist of a control grid, a high-potential grid, and a. third grid electrically connected to the cathode.
GB2728528A 1928-09-22 1928-09-22 Improvements in vacuum electric tube devices Expired GB322827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2728528A GB322827A (en) 1928-09-22 1928-09-22 Improvements in vacuum electric tube devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2728528A GB322827A (en) 1928-09-22 1928-09-22 Improvements in vacuum electric tube devices

Publications (1)

Publication Number Publication Date
GB322827A true GB322827A (en) 1929-12-19

Family

ID=10257090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2728528A Expired GB322827A (en) 1928-09-22 1928-09-22 Improvements in vacuum electric tube devices

Country Status (1)

Country Link
GB (1) GB322827A (en)

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