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MT17

Information - Help 
ID = 30496
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Thyratron 
Identical to MT17 = FG17 = 5557

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.

 
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 546, p.-1143
Tube Lore (II)   Page 90


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