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DFA2

Information - Help 
ID = 44209
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Triode, vacuum   Power/Output 
Identical to DFA2

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 3.5 Volts / If 0.25 Ampere / Direct / Battery =
Dimensions (WHD)
incl. pins / tip
45 x 110 x mm / 1.77 x 4.33 x inch
Information source -- Collector info (Sammler)   Banneitz, TB der drahtl. Telephonie u.Telegr. 1927
British Radio Valves - The Vintage Years: 1904-1925   Page 118

b4_base_pins~~90.png DFA2: Fin Stewart
Fin Stewart


Just Qvigstad
dfa2_spec.png
DFA2: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

 

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