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869A

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ID = 7485
       
Country:
United States of America (USA)
Brand:
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Half-Wave Mercury-Vapor Rectifier   Power-supply 
Identical to 869A = UV869A = 38169A = WL-869A = VT-39A = F369A = WL-423
Similar Tubes
Other class quality (otherwise equal):
  CV2723
Predecessor Tubes 869  
Successor Tubes 869B  

Base Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 5 Volts / If 18 Ampere / Direct / Specified voltage AC/DC
Description

Work started on development of this tube at the GE laboratories in the summer of 1931 and it was an Improved 869 version of the UV869. It was assigned the type number in December 1931and available to the public in the following year. Filament current reduced to 18A. Pin-and-blade jumbo base. 20KV PIV, 2.5A average over 30s time max; forced air cooling required.

 
Dimensions (WHD)
incl. pins / tip
x 347 x 128 mm / x 13.66 x 5.04 inch
Weight 476 g / 16.79 oz
Information source Tube Lore (II)   p. 80
Tube Lore (I)   
- - Manufacturers Literature
Taschenbuch zum Röhren-Codex 1948/49

869~~6.png 869A: Manufacturer's Literature
Emilio Ciardiello

 
uv869a.jpg

 

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