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GU20

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ID = 17746
       
Country:
Great Britain (UK)
Brand: GEC, General Electric Co Ltd., GENALEX; London
Tube type:  Half-Wave Mercury-Vapor Rectifier   Power-supply 
Identical to GU20 = GU21 = 7878 = CV1435

Base Edison giant, E40 = 40 mm-Goliat Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 4 Volts / If 11 Ampere / Direct
Description

Va<13kV; Ik<1.25A mean.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
60 x 258 x mm / 2.36 x 10.16 x inch
Information source Babani, International Radio Tube Encyclopaedia   p. 278 & 279
- - Manufacturers Literature   
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

1_edison_rect.png GU20: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
7878_gu20_1.png
GU20: Manufacturer's Literature
Emilio Ciardiello

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e_marconi_gu_20.jpg

 

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