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MT31

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ID = 51713
       
Country:
Italy
Brand: Marconi - Officine Marconi; Genova
Tube type:  Transmitting Triode, air cooled 
Identical to MT31 = RS31g = W31_Zenith = RS31 = 3C70

Base SPECIAL TUBEBASE in general Top contact with a cap.
Filament Vf 10 Volts / If 4.8 Ampere
Description

Transmitting triode by Officine Marconi, Genova, Italy. Two used in the A350-1 trailer mounted transmitter of Italian Army, 1935.

 
Information source -- Original prospect or advert   La Radio in Grigioverde
 
mt31_3.jpg
MT31
Emilio Ciardiello

 
rs31_1.png
MT31
Emilio Ciardiello

 


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