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DH73

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ID = 29821
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Double Diode-Triode 
Identical to DH73
First Source (s)
1940 : - - Manufacturers Literature

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Filament Vf 6.3 Volts / If 0.16 Ampere / Indirect / Specified voltage AND current AC/DC
Description Part of the "Uniwatt" range designed for universal 6/6.3V ac/battery and series operation.
Only supplied metallised. 
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 295
- - Manufacturers Literature   


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