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ID = 30416
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Transmitting Triode, air cooled   UHF 
Identical to ACT25 = CV436
Predecessor Tubes ACT23  

Base Sidecontact and top contact.
Filament Vf 15 Volts / If 3 Ampere / Indirect

Disc Seal Triode proposed as wide-band UHF amplifier. The tube derived from ACT23 / CV288 developed by GEC in 1943 for CW and pulsed operation up to 600 MHz. data of two tubes are similar, with slightly higer transconductance for the ACT25.

  • 1 kV DC anode voltage, 6 kV max pulse
  • 6 A space current, 60 A peak emission
  • 450 W power dissipation. Requires forced-air-cooling
  • Pout 50W at 1GHz with Va=600, Ia=0.55A

Text in other languages (may differ)
Information source - - Manufacturers Literature   
ACT25: Private collection
Emilio Ciardiello

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