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3H-220

Information - Help 
ID = 17934
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Current Regulator, Iron in Hydrogen 
Identical to 3H-220

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bc)
Filament
Description

used in 110V AC Sets

 
Text in other languages (may differ)
Information source Taschenbuch zum Röhren-Codex 1948/49   
Ballast Tube Handbook, The   

0_ball_7_3.png 3H-220
Emilio Ciardiello


Just Qvigstad
 

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