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ID = 14098
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Developer: MO Valve Co. Ltd.; GB 
Tube type:  Triode, vacuum   Universal 
  <1925 very rare. ***
Identical to DEV
Similar Tubes
Other characteristic (electr. data):
Heater different:
First Source (s)
1923 : British Radio Valves - The Vintage Years: 1904-1925 p.54
Predecessor Tubes V24  

Was used by Military and/or Government
Filament Vf 3 Volts / If 0.2 Ampere / Direct / Battery =

Dull emitter substitute for the V24. Some MOV DEV tubes exist with a painted part of the lower end of the bulb. This can be either orange, frosted, green or blue. This was a "color coding" method by MOV to identify certain users.

Dimensions (WHD)
incl. pins / tip
18 x 73 x mm / 0.71 x 2.87 x inch
Weight 12 g / 0.42 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   1925 Brown Brothers Catalog 217
Saga of the Vacuum Tube, Tyne   

triode~~2.png DEV: Fin Stewart
Fin Stewart

DEV: own collection
Peter den Boer

More ...
Usage in Models 2= 1920?? ; 1= 1922? ; 1= 1922 ; 1= 1923? ; 1= 1923

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):6

Collection of



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