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ID = 29388
Great Britain (UK)
Brand: BTH (B.T.H.), British Thomson-Houston Co, Ltd.
Tube type:  Thyratron 
Identical to CV381 = BT85
Predecessor Tubes VX4024  

Base Wires Top contact with a cap.
Was used by Radar
Filament Vf 2.5 Volts / If 13 Ampere / Half indirect

Hydrogen filled thyratron intended for use in radar modulators.

  • 10 kV peak anode voltage at 90 A peak current
  • 2500 p.p.s.

Cathode + heater to holding bracket, heater to yellow lead, grid to red lead, anode to top cap.

Dimensions (WHD)
incl. pins / tip
x 216 x mm / x 8.50 x inch
Information source -- Original-techn. papers.   
CV381: Private collection
Emilio Ciardiello

CV381: Manufacturer's Literature
Emilio Ciardiello

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