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FER2_6Volt

Information - Help 
ID = 30854
       
Country:
Great Britain (UK)
Brand: Louden Valves (tubes) - see also Fellows; London
Developer: Louden Valves (tubes) - see also Fellows; London 
Tube type:  Triode, vacuum   Universal 
Identical to FER2_6Volt
Similar Tubes
Heater different:
  FER2_4Volt
First Source (s)
1925 : British Radio Valves - The Vintage Years, Thrower p.51 & 158

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 6 Volts / If 0.1 Ampere / Direct / Battery =
Description

Louden valves were marketet by Fellows Magneto Co. Ltd. in 1924 and 1925. Some Louden designations used were FE1 and FE2 for bright emitters; FER1, FER2 and 0.06 designated dull emitters having thoriated filaments.

 
Information source Saga of the Vacuum Tube, Tyne   page 392
 
b4_base_pins~~6.png
FER2_6Volt: Fin Stewart
Fin Stewart

 
fer2_spec_1.png
FER2_6Volt: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector


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