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GB705740A - Improvements in and relating to electron discharge devices - Google Patents

Improvements in and relating to electron discharge devices

Info

Publication number
GB705740A
GB705740A GB133251A GB133251A GB705740A GB 705740 A GB705740 A GB 705740A GB 133251 A GB133251 A GB 133251A GB 133251 A GB133251 A GB 133251A GB 705740 A GB705740 A GB 705740A
Authority
GB
United Kingdom
Prior art keywords
wire
relating
discharge devices
electron discharge
rods
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
GB133251A
Inventor
Forrest Edward Gehrke
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Priority to GB133251A priority Critical patent/GB705740A/en
Publication of GB705740A publication Critical patent/GB705740A/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
    • 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
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture
    • H01J2893/0025—Manufacture by winding wire upon a support

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

705,740. Thermionic valves. SYLVANIA ELECTRIC PRODUCTS, Inc. Jan. 17, 1951, No. 1332/51. Class 39(1) A half grid for an electric discharge tube is formed with lateral wire 32 wound on rods 33, 34, the wire being deformed to produce a single surface to one side of the plane containing the rods. The major portion of the grid wire may occupy a plane, Fig. 5, or the surface of a cylinder, Fig. 6. The use of two half grids in a double triode is mentioned, the valve having a common cathode, indirectly heated, Figs.'1, 2 (not shown).
GB133251A 1951-01-17 1951-01-17 Improvements in and relating to electron discharge devices Expired GB705740A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB133251A GB705740A (en) 1951-01-17 1951-01-17 Improvements in and relating to electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB133251A GB705740A (en) 1951-01-17 1951-01-17 Improvements in and relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB705740A true GB705740A (en) 1954-03-17

Family

ID=9720158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB133251A Expired GB705740A (en) 1951-01-17 1951-01-17 Improvements in and relating to electron discharge devices

Country Status (1)

Country Link
GB (1) GB705740A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039651B (en) * 1955-11-02 1958-09-25 Sylvania Electric Prod Machine for the production of grilles for electric discharge tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039651B (en) * 1955-11-02 1958-09-25 Sylvania Electric Prod Machine for the production of grilles for electric discharge tubes

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