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56A

Information - Help 
ID = 13463
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Majestic tubes of Grigsby-Grunow 
Tube type:  Triode, vacuum 
Identical to 56A
Similar Tubes
Other shape (e.g. bulb type):
  56AS
Heater different:
  56S
Predecessor Tubes 56  

Base UY-Base, 5 Pins (USA, April 1927) (Codex=H)
Filament Vf 6.3 Volts / If 0.4 Ampere / Indirect
Description Majestic variant of 56 with 6 volts heater. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (I)   
 
56_6.png
56A
Emilio Ciardiello

 

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