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Detectron_2

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ID = 76110
       
Country:
Japan
Brand: Annaka Electric Co.; - from 1931 called Anritsu.
Developer: Annaka Electric Co.; - from 1931 called Anritsu. 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to Detectron_2

Base Wires
Was used by Radio/TV-reception etc.
Filament Direct / Battery =
Description This tube was made around 1916 - 1918 and the paper label on the tube states that it was made by the Annaka Wireless Works of Tokyo. The label also says "DETECTRON No 2". It is assumed that the tube is a detector. The anode is made of very fine wire and the grid of a heavier construction. The element structure is supported in a glass cage. 
Dimensions (WHD)
incl. pins / tip
x 80 x 28 mm / x 3.15 x 1.10 inch
Information source The AWA Journal   Vol. 32 #4 Feb 1992

 
annaka_detectron_no_2_copy.jpg

Detectron_2
 

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