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ID = 78988
Brand: Orion; Budapest
Tube type:  Triode, vacuum   Universal 
Identical to DG104

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 0.08 Ampere / Direct / Battery =

Heater range 3 to 4V at 0.08 to 0.10A.

Plate voltage 5 to 25V

Information source - - Manufacturers Literature   

b4_base_pins~~791.png DG104: Fin Stewart
Fin Stewart

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