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D416B

Information - Help 
ID = 49619
       
Country:
United States of America (USA)
Brand: DeForest-Tubes
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
  Ca. 1925 up to 1945 rare.
Identical to D416B
Similar Tubes
Normally replaceable-slightly different:
  UX216B
Predecessor Tubes DR  

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 7.5 Volts / If 1.25 Ampere / Direct / Parallel, (AC/DC)
Description

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

 
Dimensions (WHD)
incl. pins / tip
55 x 135 x mm / 2.17 x 5.31 x inch
Literature - - Manufacturers Literature   1927
70 Years of Radiotubes and V.   Page 166
 
4aa_ux4_half_rect.png
D416B: own collection
Peter den Boer

 
d416bsmall.png
D416B: own collection
Peter den Boer


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