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4B22

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ID = 6809
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Electrons Inc.; Newark, NJ 
Tube type:  Full-Wave Rectifier inert gas filled   Power-supply 
Identical to 4B22 = EL5B2.5 = 38402 = CV2936
First Source (s)
28.Oct.1942 : Electron Tube Registration List rec. 308

Base Edison giant, E40 = 40 mm-Goliat 2 Top contacts.
Was used by Industrial
Filament Vf 2.5 Volts / If 12 Ampere / Direct
Description

Full-wave graphite-anode argon rectifier. Pear-shaped bulb, Mogul screw base, two plate pins. 340V PIV, 5A.
Chatham and Electrons known manufacturers.

 
Information source Tube Lore (II)   p. 86 & 183
Tube Lore (I)   
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

edison_png~~3.png 4B22: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
4b22_1_3.png
4B22: Manufacturer's Literature
Emilio Ciardiello

 
20200703_002709.jpg

4B22
 

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