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V21

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ID = 8340
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
  Ca. 1925 up to 1945 rare.
Identical to V21
Similar Tubes
Normally replaceable-slightly different:
  1800

Base Europe 3-Pin B3 (Eu H) (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.3 Ampere / Direct
Dimensions (WHD)
incl. pins / tip
50 x 116 x 35 mm / 1.97 x 4.57 x 1.38 inch
Weight 60 g / 2.12 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 2, p. 1
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

3pir~~2.png V21: Fin Stewart
Fin Stewart


Just Qvigstad

Collection of

 
v21fotosgrammontsmall.jpg

V21
 

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