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T4_Osram

Information - Help 
ID = 59131
       
Country:
Great Britain (UK)
Brand: Osram-Valves GB (not MO-Valves)
Developer: Osram-Valves GB (not MO-Valves) 
Tube type:  Transmitting Triode, air cooled 
  <1925 very rare. ***
Identical to T4_Osram = NT4A = CV1204

Base Wires Wires only.
Was used by Military and/or Government
Filament Vf 17.5 Volts / If 5.2 Ampere / Direct / Specified voltage AC/DC
Description

400 watt transmitting tube. First made early 1918. British Navy version NT4

 
Dimensions (WHD)
incl. pins / tip
175 x 330 x mm / 6.89 x 12.99 x inch
Information source British Radio Valves - The Vintage Years, Thrower   Pages 128 & 130
Saga of the Vacuum Tube, Tyne   Page 230
 

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