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ID = 49317
Brand: Unknown - CUSTOM BUILT: France (INCONNU)
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to 1-26

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Vf 5 Volts / Direct /

The filament voltage is 5 to 5.5, the anode voltage is 1000 max.

Dimensions (WHD)
incl. pins / tip
70 x 140 x 37 mm / 2.76 x 5.51 x 1.46 inch
Weight 63 g / 2.22 oz

1-26: own collection
Peter den Boer


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