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102DW

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ID = 28940
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  Triode, vacuum   Universal 
  <1925 very rare. ***
Identical to 102DW = 102D = 209A = 4102D = SY4102D = 209A_Wecoltd
First year 1922 Saga of the Vacuumtube, Tyne page 286, 287

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Telephony
Filament Vf 2.1 Volts / If 1 Ampere / Direct / Parallel / series AC/DC
Dimensions (WHD)
incl. pins / tip
59 x 109 x mm / 2.32 x 4.29 x inch
Weight 58 g / 2.05 oz
  102dw_umg.png
  102DW: Electrical Communication Vol.II, Nr.3 (Jan. 1924)
Georg Richter
 
102dw_so.png
102DW: rt
Michael Schlör

 

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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