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407RH

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ID = 85917
       
Country:
Netherlands
Brand: Frelat N.V.; Amsterdam
Developer: Heussen, M. & Co; Arnhem 
Tube type:  Triode, vacuum   Power/Output 
Identical to 407RH

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.07 Ampere / Direct
Information source British Radio Valves - The Classic Years: 1926-1946   P. 262 and Supplement, p. 40
-- Original prospect or advert   Undated ad 1929

b4_base_pins~~636.png 407RH: Fin Stewart
Fin Stewart


Just Qvigstad
 

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