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VT-42A

Information - Help 
ID = 7178
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Half-Wave Mercury-Vapor Rectifier   Power-supply 
Identical to VT-42A = 872A

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bz)
Filament Vf 5 Volts / If 6.7 Ampere / Direct
Description Shielded electrode structure, reduced filament current. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (I)   
 
vt42a_1.jpg
VT-42A
Danko Tkalec

 
872a_so_1.png
VT-42A: ARRL Handbook 1972
Michael Schlör

 


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