GB425340A - Electron discharge device - Google Patents

Electron discharge device

Info

Publication number
GB425340A
GB425340A GB17523/34A GB1752334A GB425340A GB 425340 A GB425340 A GB 425340A GB 17523/34 A GB17523/34 A GB 17523/34A GB 1752334 A GB1752334 A GB 1752334A GB 425340 A GB425340 A GB 425340A
Authority
GB
United Kingdom
Prior art keywords
grid
cathode
grids
anode
discharge device
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
GB17523/34A
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Publication of GB425340A publication Critical patent/GB425340A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
    • H01J21/12—Tubes with variable amplification factor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0032—Tubes with variable amplification factor

Landscapes

  • Physical Or Chemical Processes And Apparatus (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

425,340. Thermionic valves. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Wheeler, H. A.; 18, Melbourne Road, Great Neck, New York, U.S.A.) Dec. 18, 1933, No. 17523/34. Convention date, Jan. 30, 1933. Divided out of 425,340. [Class 39 (i)] A valve has at least three grids between a cathode and an anode, the third grid counting from the cathode having a non-uniform spacing of the meshes. As shown, four grids 2 .. 5 are mounted between an indirectly-heated cathode 1 and the anode 6, the third grid 4 being so wound as to produce a variable-mu effect. The cross-section of the grids may be elliptical. Dimensions of the grids are given. The grids 3, 5 may be of fine mesh and are maintained at a constant positive potential and the grid 4 at a negative potential, so that a " virtual cathode" is produced in the region of the grid 4. The input is connected between the grid 4 and the cathode, and the output between the grid 4 and the anode. A modulating voltage may be applied between the grid 2 and the cathode. The inner surface of the glass envelope may be carbonized.
GB17523/34A 1933-01-30 1933-12-18 Electron discharge device Expired GB425340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US425340XA 1933-01-30 1933-01-30

Publications (1)

Publication Number Publication Date
GB425340A true GB425340A (en) 1935-03-12

Family

ID=21922441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17523/34A Expired GB425340A (en) 1933-01-30 1933-12-18 Electron discharge device

Country Status (1)

Country Link
GB (1) GB425340A (en)

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