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42B2

Information - Help 
ID = 17993
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Current Regulator, Iron in Hydrogen 
Identical to 42B2
First Source (s)
17.Sep.1935 : Electron Tube Registration List 47

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uc)
Filament
Description

Ballast tube for use with 300 mA serie tubes, 2 pilot lamp taps, giving 42.3V drop.
Registered to Champion Radio Tube Co.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

40_pin~~1.png 42B2: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
 

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