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D401A

Information - Help 
ID = 22377
       
Country:
United States of America (USA)
Brand: DeForest-Tubes
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Detector 
  Late but very rare. ***
Identical to D401A = 01A = UX201A = CX301A = UX-201-A_Japan = D-01A
First Source (s)
1930 : Saga of the Vacuum Tube, Tyne

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.25 Ampere / Direct / Battery =
Dimensions (WHD)
incl. pins / tip
45 x 117 x mm / 1.77 x 4.61 x inch
Tube prices 1 Tube prices (visible for members only)
Information source Saga of the Vacuum Tube, Tyne   Page 305
70 Years of Radiotubes and V.   Page 166
 
deforestd401a.jpg
D401A: A.Vonarburg
Konrad Birkner † 12.08.2014

 
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D401A: KoBi
Konrad Birkner † 12.08.2014

 
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D401A: own collection
Peter den Boer


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