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U1220

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ID = 1980
       
Country:
Germany
Brand: Osram GmbH KG; Berlin
Tube type:  Current Regulator, Urdox without FeH 
Identical to U1220
Similar Tubes
Other base:
  Ks122020

Base Europe side contact P8A (Au P, 8SC) (Codex=S)
Filament
Description 200mA bei 10...14V
Netzspannung: 150...220V 
Information source Ballast Tube Handbook, The   
Taschenbuch zum Röhren-Codex 1948/49   
Röhren-Taschenbuch (frühe Ausgaben, spätere siehe andere Einträge)

u1220s.png U1220: Lorenz Empfänger-Röhren , 9. Auflage
Anonymous 54 Collector


Just Qvigstad
u1220.png
U1220: Lorenz Empfänger-Röhren , 9. Auflage
Anonymous 54 Collector

Usage in Models 1= 1935 ; 2= 1936 ; 1= 1938 ; 1= 1939? ; 2= 1939

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7

Collection of

 
u1220_p.jpg

U1220
 

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