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ID = 20706
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Triode, vacuum 
Identical to 5744WB = 6190 = CK5744WB
Similar Tubes
Normally replaceable-slightly different:
  5744 ; 6151
Other class quality (otherwise equal):

Base Subminiatur (wire-ends, flat) B5A
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Description High-rel version of 5744. 
Information source Röhren-Taschen-Tabelle, (Franzis RTT)   
Tube Lore (I)   
5744WB: PA3ESY Vintage Radio Collection
Jan Poortman

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5744WB: RTT Schwandt
Günther Stabe † 19.8.20

5744WB: Manufacturer's Literature
Emilio Ciardiello

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