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ID = 13458
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Triode, vacuum   Audio Frequency 
Identical to 41MRC
Similar Tubes
Normally replaceable-slightly different:
  484V ; E438 ; REN1004
First Source (s)
1929 : History of the British Radio Valve to 1940 p.173 & 178

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 voltage AND current AC/DC

Resistor coupling

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

7_57.png 41MRC: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
41MRC: own collection
Peter den Boer

Usage in Models 1= 1931

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

Collection of



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