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VIRAA

Information - Help 
ID = 28890
       
Country:
Netherlands
Brand: Vereenigde Industrieen (N.V.V.I.); Rotterdam
Developer: Vereenigde Industrieen (N.V.V.I.); Rotterdam 
Tube type:  Triode, vacuum   Universal 
  Ca. 1925 up to 1945 rare.
Identical to VIRAA
First year 1926 Saga of the Vacuumtube, Tyne page 427

Base Europe 4-Pin (A, 4A, B4, since 1914)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Description On the label on the tube base is printed: filament voltage 3.7-4 Volt, filament current 0.06 Amp., anode tension 40-100 Volt. 
Dimensions (WHD)
incl. pins / tip
33 x 90 x 32 mm / 1.30 x 3.54 x 1.26 inch
Weight 31 g / 1.09 oz
 
vir_viraa_bild1..jpg
VIRAA: Aus meiner Sammlung
Rudolf Osterkamp

 
3_b4~~4.png
VIRAA: own collection
Peter den Boer

 


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