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4B28

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ID = 59625
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Half-Wave Rectifier, inert gas filled   Power-supply 
Identical to 4B28 = CE225 = 289414 = 189048

Base Edison giant, E40 = 40 mm-Goliat Top contact with a cap.
Was used by Industrial
Filament Vf 2.2 Volts / If 17 Ampere / Direct
Description

"Tungar" bulb. 75V @ 5A; 125V @ 0.25A
Registered to GE on Jan 5, 1943

6 amp battery charger tube used for radio, automotive and industrial purposes

 
Dimensions (WHD)
incl. pins / tip
80 x 163 x mm / 3.15 x 6.42 x inch
Weight 105 g / 3.70 oz
Information source -- Collector info (Sammler)   The Automobile Storage Battery, 1930
Tube Lore (II)   p. 86

edison~~3.png 4B28: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
4b28_1~~3.png
4B28: Manufacturer's Literature
Emilio Ciardiello

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