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ID = 28174
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Developer: GEC, General Electric Co.; London 
Tube type:  Transmitting Triode, air cooled   VHF 
Identical to CV240 = ACT24 = E1496

Was used by Radar
Filament Vf 6 Volts / If 17 Ampere / Half indirect

Micropup Construction. Capable of full ratings operation up to 100 MHz. Indirectly heated oxide-coated cathode for large emission. Platinum coated molybdenum grid to reduce secondary emission.

  • 1 kW anode power dissipation
  • 15 kV peak anode voltage
  • 125 A cathode emission

Designed at GEC as E1496, it was introduced in 1944, likely as the largest micropup triode ever made. It had been designed to operate down to 1 m wavelenght (300 MHz) but tests at TRE were performed down to 50 cm (600 MHz).

Dimensions (WHD)
incl. pins / tip
x 230 x mm / x 9.06 x inch
Weight 1200 g / 42.33 oz
Information source -- Original-techn. papers.   
CV240: Private collection
Emilio Ciardiello

CV240: Manufacturer's Literature
Emilio Ciardiello

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