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ID = 27581
Tube type:  Thyratron 
Identical to CV12 = E1191

Base Wires Top contact with a cap.
Was used by Radar
Filament Vf 2.5 Volts / If 43 Ampere / Direct

Mercury thyratron; 15KV, 200A peak. Used as pulse modulator in radar Type 277, to drive the CV76 magnetron. In service since 1943.
First introduced by GEC, with its early coding E1191, was also manufactured by BTH, which adapted its thyratron BT49.

Information source -- Original prospect or advert   Callick, Metres to Microwaves
-- Original-techn. papers.   

CV12: Manufacturer's Literature
Emilio Ciardiello

CV12: Manufacturer's Literature
Emilio Ciardiello

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