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CWN4

Information - Help 
ID = 12635
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to CWN4 = E442S

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
dsc08264_1_a.jpg
CWN4: scc
Christian Schaufelberger

 
cwn4_so.png
CWN4: rtt
Michael Schlör

 

from Just Qvigstad


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