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501_Sovereign

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ID = 28971
       
Country:
United States of America (USA)
Brand: Sovereign Electric & Mfg. Co.; Chicago
Tube type:  Triode, vacuum   Universal 
Identical to 501_Sovereign
First year 1928 Saga of the Vacuumtube, Tyne page 346

Base 2 Top contacts
Filament Vf 3 Volts / If 1.1 Ampere / Indirect / Parallel, (AC/DC)
Description

AC tube made by Sovereign Electric & MFG Co., Chicago.

 
Text in other languages (may differ)
 
ac_501.jpg
501_Sovereign: Ebay Seller Ebay Seller lar38 Item 221004311487
Franz Scharner

 

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