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DV3

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ID = 25267
       
Country:
United States of America (USA)
Brand: DeForest-Tubes
Developer: DeForest-Tubes 
Tube type:  Triode, vacuum   Universal 
  <1925 rare.
Identical to DV3
Similar Tubes
Other base:
  DV3A
Other base and data slightly different:
  DL3_deForest

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 0.06 Ampere / Direct / Battery =
Description

First made November 1924, with bakelite base. Changed to "Isolantite" late in 1925. Tube was sold in a metal can.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
35 x 90 x mm / 1.38 x 3.54 x inch
Tube prices 11 Tube prices (visible for members only)
Literature Saga of the Vacuumtube, Tyne   Pages 301 & 302
-- Collector info (Sammler)   
 
usa_deforest_dv3_side.jpg
DV3: As found in Browning-Drake Regenaformer
David Clarke

 
deforest_dv3_sock.png
DV3: O.F.
Otto Frosinn

 

Usage in Models 1= 1923 ; 1= 1924

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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