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U1230-4

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ID = 3289
       
Country:
Germany
Brand: Osram GmbH KG; Berlin
Tube type:  Current Regulator, Urdox without FeH 
Identical to U1230-4 = U1230/4
Base Swan-Bajonett B22=22 mm
Filament
Dimensions (WHD)
incl. pins / tip		 27 x 72 x mm / 1.06 x 2.83 x inch
 
u1230_osram.jpg
U1230-4: g.h.
Gerhard Heigl
 
sockel_bajonett_1.png
U1230-4: g.h.
Gerhard Heigl
 
Usage in Models 1= 1934?? ; 1= 1935?? ; 1= 1935? ; 2= 1937 ; 1= 1938 ; 1= 1939 ; 1= 1942 ; 1= 1943 ; 1= 1948 ; 1= 1949
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):11
Collection of Gerhard Heigl (A)
Collection of Wolfgang Bauer (A)
Collection of Karl - Heinz Bossan (D)
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