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CV2957

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ID = 51083
       
Country:
Worldwide
Brand: Common type Worldwide tube/semicond.
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Thyratron 
Identical to CV2957 = 5557 = FG17

Base UX-Base (4 Pins (2 thick, USA 1924, UX) Top contact with a cap.
Was used by Industrial
Filament Vf 2.5 Volts / If 5 Ampere / Direct
Description

This tube is a negative control mercury vapor thyratron for use where it is desired to actuate the tube with a change in negative grid voltage. It requires relatively little grid power and is suitable for use in relay circuits where current flow is desired in the absence of grid exitation.

 
Text in other languages (may differ)
Information source -- Original-techn. papers.   
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   p. 40
Babani, International Radio Tube Encyclopaedia

3l11111.png CV2957: Manufacturer's Literature
Emilio Ciardiello


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