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GB449378A - Improvements in thermionic valves - Google Patents

Improvements in thermionic valves

Info

Publication number
GB449378A
GB449378A GB2523535A GB2523535A GB449378A GB 449378 A GB449378 A GB 449378A GB 2523535 A GB2523535 A GB 2523535A GB 2523535 A GB2523535 A GB 2523535A GB 449378 A GB449378 A GB 449378A
Authority
GB
United Kingdom
Prior art keywords
grid
posts
receive
tubes
thermionic
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
GB2523535A
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.)
HAROLD ALFRED MALPAS
Original Assignee
HAROLD ALFRED MALPAS
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 HAROLD ALFRED MALPAS filed Critical HAROLD ALFRED MALPAS
Priority to GB2523535A priority Critical patent/GB449378A/en
Publication of GB449378A publication Critical patent/GB449378A/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
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/38—Control electrodes, e.g. grid
    • 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
    • H01J2893/0015—Non-sealed electrodes

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

449,378. Thermionic valves. MALPAS, H. A., 332, Church Road, St. George, Bristol. Sept. 11, 1935, No. 25235. [Class 39 (i)] A thermionic valve comprises a grid electrode or electrodes wound on grooved or threaded porcelain tubes B<1> which are perforated to receive the grid posts A<1>, which grid posts protrude at the top of the tubes to receive a mica bridge or other insulated support for further electrodes, such as a screen grid. The grid posts A<1> are sealed into the pinch C<1>. A grid of rectangular cross-section may be supported upon four such supports. Insulating the turns of a grid in this manner is said to improve the control which it exerts on the anode current. U.S.A. Specification 1,937,202 is referred to.
GB2523535A 1935-09-11 1935-09-11 Improvements in thermionic valves Expired GB449378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2523535A GB449378A (en) 1935-09-11 1935-09-11 Improvements in thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2523535A GB449378A (en) 1935-09-11 1935-09-11 Improvements in thermionic valves

Publications (1)

Publication Number Publication Date
GB449378A true GB449378A (en) 1936-06-26

Family

ID=10224390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2523535A Expired GB449378A (en) 1935-09-11 1935-09-11 Improvements in thermionic valves

Country Status (1)

Country Link
GB (1) GB449378A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021088B (en) * 1954-02-18 1957-12-19 Siemens Ag Tension grid for electrical discharge vessels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021088B (en) * 1954-02-18 1957-12-19 Siemens Ag Tension grid for electrical discharge vessels

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