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GIR312Sf15

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ID = 62650
       
Country:
Germany
Brand: Osram GmbH KG; Berlin
Tube type:  Glow Indicator (Neon)   Indication 
Identical to GIR312Sf15

Base Swan-Bajonett B15
Filament No heater
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
osram_gir312sf15.jpg
GIR312Sf15: Jürgen Ewert
Wolfgang Bauer

 

from Just Qvigstad

Usage in Models 4= 1936

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4


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