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HF3104

Information - Help 
ID = 30242
       
Country:
Germany
Brand: Werk für Fernmeldewesen (OSW, HF, WF) Berlin, VEB, RFT (Ostd.)
Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (new) 
Identical to HF3104 = OSW3104 = 6A7_DDR = 6SA7_DDR

Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 245
 
hf3104_so.png
HF3104
Michael Schlör

 
6sa7~~4.png
HF3104: Werk für Fernmeldewesen Schöneweide
Egon Strampe


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