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NU-57AS

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ID = 77509
       
Country:
United States of America (USA)
Brand: National Union Radio Corp.; Orange (NJ)
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to NU-57AS
Similar Tubes
Other class quality (otherwise equal):
  57AS

Base 6-Pin-Base U6A, old, USA Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.4 Ampere / Indirect / Specified voltage AC/DC
Description This tube fitted with a metal shield covering the bulb 
Dimensions (WHD)
incl. pins / tip
x 119 x 42 mm / x 4.69 x 1.65 inch
Weight 42 g / 1.48 oz
Information source -- Original prospect or advert   Shapleigh Hardawre co St Louis catalogue 1935


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