AT151755B - Electron tube with cathode and at least five other electrodes. - Google Patents

Electron tube with cathode and at least five other electrodes.

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Publication number
AT151755B
AT151755B AT151755DA AT151755B AT 151755 B AT151755 B AT 151755B AT 151755D A AT151755D A AT 151755DA AT 151755 B AT151755 B AT 151755B
Authority
AT
Austria
Prior art keywords
cathode
electrodes
electron tube
electrode
blackening
Prior art date
Application number
Other languages
German (de)
Original Assignee
Telefunken Gmbh
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 Gmbh filed Critical Telefunken Gmbh
Application granted granted Critical
Publication of AT151755B publication Critical patent/AT151755B/en

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Description

  

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  Elektronenröhre mit Kathode und mindestens fünf weiteren Elektroden. 
 EMI1.1 
 

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   ausstrallungsvermögen   und damit ihre Belastbarkeit erhöht. Der Draht, aus dem das Drahtgeflecht für die Anode hergestellt ist, besitzt also einen so kleinen Durchmesser, dass er in blankem Zustande die auf die Anode entfallende Belastung nicht vertragen würde, und hält diese erst durch die Schwärzung seiner   Oberfläche   aus. Beispielsweise kann man einer durchbrochenen Elektrode einer Empfängerendröhre   üblicher Grosse,   die aus Drahtgaze von 60 Maschen je Zoll mit einer   Drahtstärke   von   0. 15 mm   besteht, durch Schwärzung eine   Dauerbelastungsfähigkeit   von 6 Watt verleihen.

   Durch die Kombination der beiden oben angeführten Massnahmen wird ein wichtiges Problem der Röhren mit fünf und mehr durchbrochenen Elektroden gelöst, indem sowohl für die äusserste als auch für die inneren Elektroden, z. B. die oft als eigentliche Anode wirkende vorletzte Elektrode, günstige thermische Verhältnisse geschaffen werden.



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  Electron tube with cathode and at least five other electrodes.
 EMI1.1
 

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   capacity and thus their resilience increased. The wire, from which the wire mesh for the anode is made, has such a small diameter that it would not be able to withstand the load on the anode in a bare state, and can only withstand this through the blackening of its surface. For example, an openwork electrode of a receiver end tube of the usual size, which consists of wire gauze of 60 meshes per inch and a wire thickness of 0.15 mm, can be given a continuous load capacity of 6 watts by blackening it.

   By combining the two measures listed above, an important problem of the tubes with five or more perforated electrodes is solved by both the outer and the inner electrodes, z. B. the penultimate electrode, which often acts as the actual anode, creates favorable thermal conditions.

 

Claims (1)

PATENT-ANSPRUCH : Elektronenröhre mit einer Kathode und mindestens fünf weiteren, hintereinanderliegenden durchbrochenen Elektroden, dadurch gekennzeichnet, dass die äusserste Elektrode aus einem Drahtgebilde aus dünnen Drähten mit geschwärzter Oberfläche besteht, deren Durchmesser kleiner als die lichte Weite der Zwischenräume zwischen denselben und so gering ist, dass diese Elektrode erst durch die oberflächliche Schwärzung die benötigte thermische Belastungsfähigkeit erhält. PATENT CLAIM: Electron tube with a cathode and at least five further, consecutively perforated electrodes, characterized in that the outermost electrode consists of a wire structure of thin wires with a blackened surface, the diameter of which is smaller than the clear width of the spaces between them and so small that this electrode Only through the surface blackening does it get the required thermal load capacity.
AT151755D 1933-01-09 1933-12-22 Electron tube with cathode and at least five other electrodes. AT151755B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE151755X 1933-01-09

Publications (1)

Publication Number Publication Date
AT151755B true AT151755B (en) 1937-12-10

Family

ID=29261065

Family Applications (1)

Application Number Title Priority Date Filing Date
AT151755D AT151755B (en) 1933-01-09 1933-12-22 Electron tube with cathode and at least five other electrodes.

Country Status (1)

Country Link
AT (1) AT151755B (en)

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