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ID = 69944
Great Britain (UK)
Brand: Western Electric Co. Ltd.; London
Developer: Western Electric Co. Ltd.; London 
Tube type:  Triode, vacuum   Audio Frequency 
  <1925 very rare. ***
Identical to 101DW_Wecoltd = SY4101D
Similar Tubes
Normally replaceable-slightly different:
  101D ; 4101D

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Telephony
Filament Vf 4.4 Volts / If 0.97 Ampere / Direct / Battery =
Dimensions (WHD)
incl. pins / tip
x 109 x 59 mm / x 4.29 x 2.32 inch
Weight 58 g / 2.05 oz
Information source British Radio Valves - The Vintage Years: 1904-1925   Page 122

uv~~97.png 101DW_Wecoltd: Fin Stewart
Fin Stewart

Just Qvigstad

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