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D412

Information - Help 
ID = 49615
       
Country:
United States of America (USA)
Brand: DeForest-Tubes
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to D412 = UX112 = CX112
Similar Tubes
Normally replaceable-slightly different:
  UX112A

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.5 Ampere / Direct / Battery =
Description

Tube fitted with "Isolantite" base ( a type of ceramic).

 
Dimensions (WHD)
incl. pins / tip
45 x 117 x mm / 1.77 x 4.61 x inch
Information source - - Manufacturers Literature   1927
70 Years of Radiotubes and V.   page 166
 
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D412
Michael Schlör

 
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D412: own collection
Peter den Boer


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