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
