AT145331B - Device for the identification of an interrupted filament of series-heated electron tubes, especially in radio sets. - Google Patents

Device for the identification of an interrupted filament of series-heated electron tubes, especially in radio sets.

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Publication number
AT145331B
AT145331B AT145331DA AT145331B AT 145331 B AT145331 B AT 145331B AT 145331D A AT145331D A AT 145331DA AT 145331 B AT145331 B AT 145331B
Authority
AT
Austria
Prior art keywords
filament
series
identification
interrupted
electron tubes
Prior art date
Application number
Other languages
German (de)
Inventor
Kurt Ansorge
Original Assignee
Kurt Ansorge
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 Kurt Ansorge filed Critical Kurt Ansorge
Application granted granted Critical
Publication of AT145331B publication Critical patent/AT145331B/en

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Description

  

   <Desc/Clms Page number 1> 
 



    Einrichtung   zur Kenntlichmachung eines unterbrochenen Heizfadens von seriengeheizten Elektronen-   ri) hren, insbesondere bei Radioapparaten.   



   Sicherungseinrichtungen für elektrische Niederspannungsstromkreise mit in Reihe geschalteten Stromverbrauchern wurden bisher in Form einer Kurzschluss- bzw. Umgehungsleitung hergestellt, die durch eine dünne isolierende Haut aus dem Oxyd des Metalls der   Zuleitungsdrähte gebildet   wird, so dass das Oxyd eine elektrische Verbindung zwischen den   Zuführungsdrähten bei normaler   Betriebs-   spannung   verhindert, bei   Spannungserhöhungen jedoch eine Verbindung   entstehen lässt, oder es wurden 
 EMI1.1 
 denen sich beim Ausbrennen des Glühdrahtes ein Lichtbogen bildet. 



   Man hat auch in eine Sicherung eine Glühlampe parallel zur Sicherungspatrone geschaltet, wobei im Falle des Durchschmelzens der Patrone die Glühlampe mit den Verbrauchskörpern in Serie brennt 
 EMI1.2 
 Röhren mit Glimmentladung innerhalb von Sicherungspatronen angeordnet worden, so dass durch Auslöschen oder Aufleuchten das Durchschmelzen des Drahtes wahrnehmbar wird. 



   Erfindungsgemäss wird zur Kenntliehmachung eines unterbrochenen Heizfadens von seriengeheizten Elektronenröhren den Heizfäden der Röhren je eine Glimmlampe parallel geschaltet. 



   Ist der Heizfaden unverletzt, so entsteht an den   Heizfadenenden   eine so geringe Spannung, dass die Glimmlampe nicht zündet. Ist dagegen der Heizfaden unterbrochen, so steigt die Spannung an den Heizfadenenden so hoch an, dass die zum Heizfaden parallel geschaltete   Glimmlampe   zündet,   wodureh   die defekt gewordene Röhre jedermann erkennbar wird   :   ausserdem bleibt der Heizkreis durch das Zünden der Glimmlampe geschlossen. 
 EMI1.3 
 auf die betreffende Netzspannung angleicht. Der Widerstand hat die Bezeichnung HIT. 



   In Fig. 2 ist eine Röhre V dargestellt, bei welcher sich eine Kontrollglimmlampe GL parallel zum Heizfaden F direkt im Sockel der Röhre befindet. 



   In Fig. 3 ist eine Röhre   V   dargestellt, bei welcher sieh eine Kontrollglimmlampe GL parallel zum Heizfaden F im Vakuumraum der Röhre befindet. 



   Mit 87'sind in den Fig. 2 und   3   die Anschlussstifte der Röhren bezeichnet. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



    Device for the identification of an interrupted filament of series-heated electron tubes, especially in radio sets.



   Safety devices for low-voltage electrical circuits with series-connected power consumers have so far been made in the form of a short-circuit or bypass line, which is formed by a thin insulating skin from the oxide of the metal of the supply wires, so that the oxide provides an electrical connection between the supply wires during normal operation - prevents voltage, but creates a connection in the event of voltage increases, or has been
 EMI1.1
 which an arc forms when the filament burns out.



   An incandescent lamp has also been connected in a fuse in parallel to the fuse cartridge, with the incandescent lamp burning in series with the consumables in the event that the cartridge melts
 EMI1.2
 Tubes with glow discharge have been arranged within fuse cartridges, so that the melting of the wire can be perceived by extinguishing or lighting up.



   According to the invention, a glow lamp is connected in parallel to the heating filaments of the tubes in order to identify an interrupted filament of series-heated electron tubes.



   If the filament is not damaged, the voltage at the ends of the filament is so low that the glow lamp does not ignite. If, on the other hand, the filament is interrupted, the voltage at the ends of the filament rises so high that the glow lamp connected in parallel to the filament ignites, which means that everyone can see the defective tube: in addition, the heating circuit remains closed when the glow lamp is ignited.
 EMI1.3
 adjusts to the relevant mains voltage. The resistor is called HIT.



   In Fig. 2, a tube V is shown in which a control glow lamp GL is parallel to the filament F directly in the base of the tube.



   In Fig. 3, a tube V is shown in which see a control glow lamp GL parallel to the filament F in the vacuum space of the tube.



   The connection pins of the tubes are designated by 87 'in FIGS.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Einrichtung zur Kenntlichmaehung eines unterbrochenen Heizfadens von seriengeheizten Elek- tronenröhren, insbesondere bei Radioapparaten, dadurch gekennzeichnet, dass den Heizfaden der Röhren je eine Glimmlampe parallel geschaltet ist, die bei unterbrochenem Heizfaden zündet. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Device for identifying an interrupted filament of series-heated electron tubes, especially in radio sets, characterized in that the filament of the tubes is connected in parallel with a glow lamp which ignites when the filament is interrupted. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT145331D 1934-08-16 1934-08-16 Device for the identification of an interrupted filament of series-heated electron tubes, especially in radio sets. AT145331B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT145331T 1934-08-16

Publications (1)

Publication Number Publication Date
AT145331B true AT145331B (en) 1936-04-25

Family

ID=3643576

Family Applications (1)

Application Number Title Priority Date Filing Date
AT145331D AT145331B (en) 1934-08-16 1934-08-16 Device for the identification of an interrupted filament of series-heated electron tubes, especially in radio sets.

Country Status (1)

Country Link
AT (1) AT145331B (en)

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