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3809_OSW

Information - Help 
ID = 26029
       
Country:
Germany
Brand: Werk für Fernmeldewesen (OSW, HF, WF) Berlin, VEB, RFT (Ostd.)
Tube type:  LOCKED OFF PART (CODE 9) - see in Notes 
Identical to 3809_OSW = OSW3809
Similar Tubes
Normally replaceable-slightly different:
  STV280/80Z

Base Europe 7-Pin C7A (Hx C, C7, C) 1933
Filament No heater
Description 4 Glimmstrecken. Bezeichnung vom Hersteller: OSW3809 (siehe dort). 
Information source - - -   RTB DFV Beier 1951
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