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W143

Information - Help 
ID = 21568
       
 
   
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to W143 = EF22
Similar Tubes
Other base:
  6CJ5 ; EF41

Base Loctal-8, B8G (Sylvania, 1938)
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Röhren-Taschen-Tabelle, (Franzis RTT)   
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w143.jpeg
W143: Photo of tube from my collection - TS
Tomasz Szczesniak

 
lo107_g.gif
W143: RTT Schwandt
Günther Stabe † 19.8.20

 

from Just Qvigstad

Usage in Models 2= 1949

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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