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ID = 57689
Brand: Niggl-Hochvakuum-Industrie, Niggl-Audion; München
Developer: Niggl-Hochvakuum-Industrie, Niggl-Audion; München 
Tube type:  Triode, vacuum 
  <1925 rare.
Identical to VR8

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.36 Ampere / Direct / Battery =

Ua = 30 / 90 / 150 V
Sättigung = 15 mA
Steilheit = 0.5 mA / V
Innenwiderstand: 18 kΩ
Durchgriff: 11 %

Dimensions (WHD)
incl. pins / tip
36 x 85 x mm / 1.42 x 3.35 x inch
Tube prices 1 Tube prices (visible for members only)
Information source -- Collector info (Sammler)   Il Radio Giornale Nr 3, Marzio 1926

Just Qvigstad

Collection of



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