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ID = 17735
United States of America (USA)
Brand: Electrons Inc.; Newark, NJ
Tube type:  Full-Wave Rectifier inert gas filled   Power-supply 
Identical to EL302.5 = 3B21

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Industrial
Filament Vf 2.5 Volts / If 5.5 Ampere / Direct
Description Argon-filled graphite anode full-wave rectifier. Electrons proprietary code for JEDEC 3B21. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
EL302.5: RMG
Robert Gillespie

EL302.5: Manufacturer's Literature
Emilio Ciardiello

EL302.5: Manufacturer's Literature
Emilio Ciardiello

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