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7_Ballast

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ID = 17955
       
Country:
United States of America (USA)
Brand: Philco, Philadelphia Stg. Batt. Co.; USA
Developer: Sylvania (Hygrade, GTE, Nilco); Emporium (PA) 
Tube type:  Current Regulator, Iron in Hydrogen   Power-supply 
Identical to 7_Ballast = CV874

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=B)
Was used by Radio/TV-reception etc.
Filament Vf 176 Volts / If 0.3 Ampere / Specified current AC/DC ~ = (Series working)
Description

This tube designed for Philco but made by Sylvania. Used in the Philco model 248E radio. Voltage drop 176 V, filament current .3 A

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Collector info (Sammler)   

577_14.png 7_Ballast: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
 

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