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D471_deForest

Information - Help 
ID = 60458
       
Country:
United States of America (USA)
Brand: DeForest-Tubes
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 very rare. ***
Identical to D471_deForest = UX171

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 =
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
Literature 70 Years of Radiotubes and V.   Page 166
- - Manufacturers Literature   
 
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D471_deForest: KoBi
Konrad Birkner † 12.08.2014

 
d471_deforest.png
D471_deForest: own collection
Peter den Boer


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