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MD12

Information - Help 
ID = 76122
       
Country:
United States of America (USA)
Brand: Marathon (tubes), Northern Manufacturing Co.; Newark, NJ
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Triode, vacuum   RF/IF-Stage 
Identical to MD12 = WD12

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament Vf 1.1 Volts / If 0.25 Ampere / Direct / Battery =
Literature -- Original prospect or advert   Undated Marathon tube brochure c. 1927
 
uv_triode_tube~~33.png
MD12: Fin Stewart
Fin Stewart

 

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