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7731

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ID = 6209
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Hytron; Salem (MA) 
Tube type:  Triode-Pentode 
Identical to 7731
Similar Tubes
Other class quality (otherwise equal):
  6U8 ; ECF82
First Source (s)
04.Jul.1960 : Electron Tube Registration List 2870
Predecessor Tubes 6U8  

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 6.3 Volts / If 0.45 Ampere / Indirect / Specified voltage AC/DC
Description

Premium 6U8. Industrial or instrument service.

 
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Tube Lore (I)   

no55_g.gif 7731: RTT Schwandt
Günther Stabe † 19.8.20

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Just Qvigstad
2870_reg~~3.png
7731: Manufacturer's Literature
Emilio Ciardiello

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