GB191767A - Improvements in the construction of thermionic valves - Google Patents

Improvements in the construction of thermionic valves

Info

Publication number
GB191767A
GB191767A GB1923421A GB1923421A GB191767A GB 191767 A GB191767 A GB 191767A GB 1923421 A GB1923421 A GB 1923421A GB 1923421 A GB1923421 A GB 1923421A GB 191767 A GB191767 A GB 191767A
Authority
GB
United Kingdom
Prior art keywords
anode
electrodes
grid
mullard
bent around
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
GB1923421A
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.)
Mullard Radio Valve Co Ltd
Original Assignee
Mullard Radio Valve 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 Mullard Radio Valve Co Ltd filed Critical Mullard Radio Valve Co Ltd
Priority to GB1923421A priority Critical patent/GB191767A/en
Publication of GB191767A publication Critical patent/GB191767A/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

Landscapes

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

Abstract

191,767. Mullard, S. R., and Mullard Radio Valve Co., Ltd. July 16, 1921. Vacuum tubes.-The control electrode of a valve is in the form of a grid bent around the axis of the electrodes, but only partially surrounding it, and the anode is of cylindrical or like shape, capable of being formed by bending a flat sheet about a, single straight axis. As shown, a grid G of zig-zag wire is bent around a straight filament cathode F so as to leave a longitudinal gap. The anode A consists of a cylindrical plate, open at the ends, with or without a longitudinal gap. The electrodes are mounted on conducting supports, and the leads pass through a single glass foot to a four-pin cap C.
GB1923421A 1921-07-16 1921-07-16 Improvements in the construction of thermionic valves Expired GB191767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1923421A GB191767A (en) 1921-07-16 1921-07-16 Improvements in the construction of thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1923421A GB191767A (en) 1921-07-16 1921-07-16 Improvements in the construction of thermionic valves

Publications (1)

Publication Number Publication Date
GB191767A true GB191767A (en) 1923-01-16

Family

ID=10125936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1923421A Expired GB191767A (en) 1921-07-16 1921-07-16 Improvements in the construction of thermionic valves

Country Status (1)

Country Link
GB (1) GB191767A (en)

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