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ID = 28926
Brand: Nowak & Co.; Wien
Tube type:  Triode, vacuum   Universal 
  Ca. 1925 up to 1945 rare.
Identical to III
First year 1927 Saga of the Vacuum Tube, Tyne page 463

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 0.06 Ampere / Direct / Battery =

Printed on the label: Nowak-Audion Type III, Filament Voltage 3-4 Volt, Filament current 0.06 Amp, Anode Voltage 20-90 Volt.

Dimensions (WHD)
incl. pins / tip
38 x 94 x 31 mm / 1.50 x 3.70 x 1.22 inch
Literature Bastelbriefe der Drahtlosen   1927, H.8
III: own collection
Peter den Boer

III: own collection
Peter den Boer

III: WEKA-Katalog 1927
Gerhard Heigl

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