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4_Philco

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ID = 21273
       
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 4_Philco

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament If 0.4 Ampere / Specified voltage AC/DC
Description 400mA at 115 to117V.
Not to be confused with Amperite type 4. This tube designed for Philco but made by Sylvania. Used in Philco model 47E single speaker radio. 
Text in other languages (may differ)
Information source Ballast Tube Handbook, The   Ratheiser, Röhrenhandbuch, 1948

577_10.png 4_Philco: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad

Collection of

 
4_1.jpg

 

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