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ID = 38863
Tube type:  Gas Triode   Detector 
  <1925 extraordinarily rare. Production was less than 100 items. ****
Identical to AUDION_DeForest
First year 1907 -- Original-techn. papers.
Predecessor Tubes Audion_01-twoelectr  
Successor Tubes Pliotron  

Base Edison (candelabra) 12 mm
Was used by Radio/TV-reception etc.
Filament Direct / Battery =

Prototypes of the most early three-electrode Audion tubes for Lee de Forest. Edison candelabra base, round bulb. The predecessor was the two-electrode Audion of 1906.

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Tube prices 9 Tube prices (visible for members only)

Usage in Models 1= 1912? ; 1= 1912 ; 1= 1913 ; 1= 1916

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):4

Collection of



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