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ID = 20370
United States of America (USA)
Brand: United Electronics Corp., Newark 4, N.J.
Tube type:  Triode, vacuum   Power/Output 
Identical to 905
Similar Tubes
Normally replaceable-slightly different:

Base Jumbo 4-pin bayonet (1918) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 3.2 Ampere / Direct / Specified voltage AND current AC/DC
Dimensions (WHD)
incl. pins / tip
x 221 x 64 mm / x 8.70 x 2.52 inch
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 370, p. 844
Babani, International Radio Tube Encyclopaedia   p. 182 & 183
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