radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

57A

Information - Help 
ID = 9643
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to 57A = G-57A
Similar Tubes
Other shape (e.g. bulb type):
  G-57A-S
Normally replaceable-slightly different:
  57AS

Base 6-Pin-Base U6A, old, USA (Codex=Kf) Top contact with a cap.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Description Babani gives heater current as 0.4A. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia

57a_so.png 57A: arrl handbook 1972
Anonymous 10 Collector


Just Qvigstad
Usage in Models 1= 1932?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

Data Compliance More Information