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U1230-4

Information - Help 
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

sockel_bajonett_1.png U1230-4: g.h.
Gerhard Heigl


Just Qvigstad
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

 
urdox_1.jpg

U1230-4
 

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