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EP221

Information - Help 
ID = 46501
       
Country:
Czechoslovakia
Brand: Tesla; Praha, Bratislava etc.
Tube type:  Vacuum Pentode   Power/Output 
Identical to EP221 = 3L31

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 2.8 Volts / If 0.05 Ampere / Direct
Description Parallelschaltung der Heizfäden: Uf=1,4V; If=0,1A. 
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