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ID = 28529
United States of America (USA)
Brand: DeForest-Tubes
Developer: DeForest-Tubes 
Tube type:  Triode, vacuum   Detector 
  <1925 very rare. ***
Identical to DV6A
Similar Tubes
Normally replaceable-slightly different:
First year 1923 ?? Saga of the Vacuum Tube, Tyne Seite 301
Predecessor Tubes DV6  

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 0.5 Ampere / Direct / Battery =

Improved version of the DV6, draws only half of the filament current.
It is now believed that the pictured tube in Tyne, p.128,Fig.7-24 right, is in fact a DV6A.

First made September 1923 and advertised in 'Radio Broadcast" magazine the same month. Tube discontinued mid 1924. The tube is fitted with a Shaw nickel plated base.

Dimensions (WHD)
incl. pins / tip
34 x 80 x mm / 1.34 x 3.15 x inch
Information source Saga of the Vacuum Tube, Tyne   p.128 & 301

uv_triode_tube~~7.png DV6A: Fin Stewart
Fin Stewart

Just Qvigstad
Usage in Models 1= 1923

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of



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