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ID = 13459
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Triode, vacuum   Audio Frequency 
Identical to 41MTL
Similar Tubes
Normally replaceable-slightly different:
First Source (s)
1937 : History of the British Radio Valve to 1940 p.178
Successor Tubes VR117  

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified current AC/DC ~ = (Series working)

Mu 45 at Va=200V, Vg=-2.5V, Ia=5.4mA.
3.5W anode dissipation, 25mA max cathode current.
Metallised glass body.

Information source L'ABCDaire des lampes de TSF des jeunes années   p. 81
- - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

41mtl_so.png 41MTL: rtt
Anonymous 10 Collector

Just Qvigstad
Usage in Models 1= 1931

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of

Collection of a member from D


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