DE581342C - Circuit for amplifying high-frequency oscillations of more than two megahertz frequency - Google Patents

Circuit for amplifying high-frequency oscillations of more than two megahertz frequency

Info

Publication number
DE581342C
DE581342C DET39802D DET0039802D DE581342C DE 581342 C DE581342 C DE 581342C DE T39802 D DET39802 D DE T39802D DE T0039802 D DET0039802 D DE T0039802D DE 581342 C DE581342 C DE 581342C
Authority
DE
Germany
Prior art keywords
frequency
circuit
megahertz
grid
amplifying high
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
DET39802D
Other languages
German (de)
Inventor
Herbert Muth
Dr Dietrich Prinz
Dr Wilhelm Runge
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Priority to DET39802D priority Critical patent/DE581342C/en
Application granted granted Critical
Publication of DE581342C publication Critical patent/DE581342C/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Description

Schaltung zur Verstärkung hochfrequenter Schwingungen von. mehr als zwei Megahertz Frequenz Die Erfindung bezieht sich auf Anordnungen _ zur Verstärkung hochfrequenter elektrischer Schwingungen hoher Frequenz . (mehr als zwei Megahertz), und zwar insbesondere auf Röhrenahordnungen mit größerer Leistung, .die ein. Schirmgitter enthalten und bei denen die Dimensionierung der etektrischen Daten, insbesondere der Durchgriff und die Spannung des Schirmgitters so gewählt ist; daß die Gitterspannung niemals positive Werte annimmt und infolgedessen der Steuersender nicht durch den Gitterstrom belastet wird.Circuit for amplifying high-frequency oscillations of. more than two megahertz frequency The invention relates to arrangements for amplification high frequency electrical oscillations of high frequency. (more than two megahertz), in particular on tube assemblies with greater power, .die a. Screen grid and for which the dimensioning of the electrical data, in particular the penetration and the tension of the screen grid is chosen so; that the grid tension never assumes positive values and, as a result, the tax sender does not through the Grid current is loaded.

Es hat sich herausgestellt, da,ß bei dem Betrieb von Röhren bei Frequenzen der angegebenen Höhe in der emittierenden Schicht der Kathode dielektrische Verluste auftreten, die den Steuersender derart belasten, daß der Vorteil,. der durch die Aussteuerung der Röhre im Gebiet negativer Gitterspannungen erzielt wird, wieder illusorisch wird. Erfindungsgemäß wird daher zwischen der Kathode und dem Steuergitter ein weiteres Gitter angeordnet, das ein relativ zur Kathode konstantes, zweckmäßig positives Potential bekommt. Hierdurch wird erreicht, daß die von dem Steuergitter ausgehenden Kraftlinien ganz- oder zum größten Teil, auf dem Hilfsgitter endigen und eine Durchsetzung der emittierenden Schicht vermieden wird.It has been found that when operating tubes at frequencies the specified height in the emitting layer of the cathode dielectric losses occur that burden the tax transmitter in such a way that the advantage. the through the Modulation of the tube in the area of negative grid voltages is achieved again becomes illusory. According to the invention, therefore, between the cathode and the control grid another grid is arranged, which is expediently constant relative to the cathode gets positive potential. This ensures that the control grid outgoing lines of force, in whole or in part, end on the auxiliary grid and penetration of the emitting layer is avoided.

Claims (1)

PATENTANSPRUCH:. Schaltung zur _ Verstärkung hochfrequenter Schwingungen von mehr als zwei Megahertz Fbeqüenz mittels Schirmgitterröhre, deren Steuerelektrode auf negativer - Spannung gehalten wird, und nichtmetallisch emittierenden Kathodenflächen, dadurch gekennzeichnet, daß zwischen Steuergitter und Kathode ein Raumladegitter vorgesehen ist. PATENT CLAIM :. Circuit for _ amplifying high-frequency vibrations of more than two megahertz Fbeqüenz by means of a screen grid tube, the control electrode of which is kept at negative voltage, and non-metallic emitting cathode surfaces, characterized in that a space charge grid is provided between the control grid and cathode.
DET39802D 1931-11-24 1931-11-24 Circuit for amplifying high-frequency oscillations of more than two megahertz frequency Expired DE581342C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET39802D DE581342C (en) 1931-11-24 1931-11-24 Circuit for amplifying high-frequency oscillations of more than two megahertz frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET39802D DE581342C (en) 1931-11-24 1931-11-24 Circuit for amplifying high-frequency oscillations of more than two megahertz frequency

Publications (1)

Publication Number Publication Date
DE581342C true DE581342C (en) 1934-05-17

Family

ID=7560594

Family Applications (1)

Application Number Title Priority Date Filing Date
DET39802D Expired DE581342C (en) 1931-11-24 1931-11-24 Circuit for amplifying high-frequency oscillations of more than two megahertz frequency

Country Status (1)

Country Link
DE (1) DE581342C (en)

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