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MT11

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ID = 59458
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Transmitting Triode, air cooled 
  Ca. 1925 up to 1945 very rare. ***
Identical to MT11

Base SPECIAL TUBEBASE in general Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 5.5 Ampere / Direct / Specified voltage AC/DC
Description

Unusual design tube (similar to MT3 but a little bigger). Special base with two "feet for the filament. Grid connection was from a contact in the center of the ebonite base. Plate from a top cap. 50 watts with 2 kv anode volts. Made for long wave use. A short-wave version the MT11SW was also made with the same envelope and base.

 
Dimensions (WHD)
incl. pins / tip
100 x 207 x mm / 3.94 x 8.15 x inch
Information source The Saga of Marconi Osram Valve   Pages 78 & 79
- - Manufacturers Literature   1936 Marconi valve catalog

mt3~~1.png MT11: Fin Stewart
Fin Stewart

Collection of

 
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