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ID = 1276
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Triode, vacuum   Power/Output 
Identical to AD1/400
Similar Tubes
Different maximum ratings:
First year 1940 -- Collector info (Sammler)

Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / Direct / Specified voltage AC/DC

400 Volt Anodenspannung

AD1/400: Sammlung KHB
Karl - Heinz Bossan

More ...

Usage in Models 1= 1947? ; 2= 1947 ; 2= 1948

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):5

Collection of a member from D

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