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6-4

Information - Help 
ID = 18700
       
Country:
United States of America (USA)
Brand: Amperite Co., Inc.; Union City / West New York (NJ)
Tube type:  Current Regulator, Iron in Hydrogen 
Identical to 6-4
Similar Tubes
Multiple differences or of other kind:
  91673_SOANG

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament
Description 608 to 612 milliamps at 5.5 to 11 volts. 
Tube prices 1 Tube prices (visible for members only)
Information source Ballast-Tube Handbook; Jacobi 1985   
 
6_4~~2.jpg
6-4: Dalla mia collezione
Antonio Bordini

 
6_4_1.png
6-4
Emilio Ciardiello

 
usa_amperite_6_4_kennlinie.png
6-4: ST
Steffen Thies


from Just Qvigstad

Usage in Models 1= 1955?? ; 1= 1955? ; 1= 1955

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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