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57AS

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ID = 9644
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to 57AS = G-57A-S
Similar Tubes
Normally replaceable-slightly different:
  57A ; G-57A
Other class quality (otherwise equal):
  NU-57AS

Base 6-Pin-Base U6A, old, USA (Codex=Kf) Top contact with a cap.
Filament Vf 6.3 Volts / If 0.4 Ampere / Indirect / Specified voltage AC/DC
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia
 
57as_so.png
57AS: ARRL Handbook 1972
Michael Schlör

 

from Just Qvigstad

Usage in Models 1= 1932 ; 3= 1933

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4

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