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V21B

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ID = 8341
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
  Ca. 1925 up to 1945 rare.
Identical to V21B
Similar Tubes
Normally replaceable-slightly different:
  1801 ; PV430 ; RGN504 ; V60_Dario

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=F)
Filament Vf 4 Volts / If 0.5 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   2-9-1933

1004200424042124n30043124small_7.png V21B: own collection
Peter den Boer


Just Qvigstad
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V21B: own collection
Peter den Boer

Usage in Models 1= 1932

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

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