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The 4CX1500A is a directly-heated, forced air-cooled, cermet structured medium power transmitter tube with a thoriated tungsten cathode. Its anode power dissipation is 1500W, and the operating frequency is 150MHz, for use in the VHF band. The end of the screen grid leads to a connecting ring, which can provide good isolation between the anode circuit and the control grid circuit. The tube is mainly used as Class C or Class AB1 linear amplifiers, or voltage regulators and linear modulators.

Specifications:

Filament Voltage……5.0V

Filament Current……38.5A

Amplification Factor…… 5.5

Interelectrode Capacitances (Grounded cathode)

         Input……78pF    feedback……0.25pF   Output……10.5pF

Operation position: vertical

Cooling： 

        core……forced air

        anode……forced air

Maximum Weight……850g

Temperature at seals and anode shell……250℃

Maximum rating

DC Plate Voltage……4000V

DC Plate Current……1.0A

DC Screen Voltage……750V

Grid Dissipation……25W

Screen Dissipation……75W

Plate Dissipation……1500W

Typical operation

DC Plate Voltage……3000V

DC Screen Voltage……500V

Plate Current……1.0A

Driving Power……31.5W

Effective Output Power……1500W