GB431180A - Improvements in thermionic amplifiers - Google Patents

Improvements in thermionic amplifiers

Info

Publication number
GB431180A
GB431180A GB35946/34A GB3594634A GB431180A GB 431180 A GB431180 A GB 431180A GB 35946/34 A GB35946/34 A GB 35946/34A GB 3594634 A GB3594634 A GB 3594634A GB 431180 A GB431180 A GB 431180A
Authority
GB
United Kingdom
Prior art keywords
grid
screen
cathode
valve
control grid
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
GB35946/34A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB431180A publication Critical patent/GB431180A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

431,180. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. March 22, 1934, No. 35946. Convention date, April 7, 1933. Divided out of 422,310. Drawings to Specification. [Class 39 (i)] In a valve having a cathode, an anode, a control grid, and at least one helically wound screen or other grid, an intermediate point of the screen &c. grid is connected through the envelope to the external circuit, for example to the cathode, and is so chosen that when the valve is used as an amplifier, the electrostatic and magnetic coupling between the screen &c. grid and the control grid is minimized. The point may be not exactly in the middle of the screen grid so that the average voltage of the screen grid with respect to the control grid is kept constant.
GB35946/34A 1933-04-07 1934-03-22 Improvements in thermionic amplifiers Expired GB431180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE431180X 1933-04-07

Publications (1)

Publication Number Publication Date
GB431180A true GB431180A (en) 1935-07-02

Family

ID=6485205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35946/34A Expired GB431180A (en) 1933-04-07 1934-03-22 Improvements in thermionic amplifiers

Country Status (3)

Country Link
BE (1) BE402088A (en)
GB (1) GB431180A (en)
NL (1) NL41236C (en)

Also Published As

Publication number Publication date
BE402088A (en)
NL41236C (en)

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