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T4700N

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ID = 13075
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to T4700N
Similar Tubes
Normally replaceable-slightly different:
  E447

Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.1 Ampere / Indirect
Information source Röhren-Vademecum; P.H. Brans; Antwerpen   p. 82
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 179, p. 310
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

 

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