The 4CX7500A is a metal-ceramic, forced air-cooled tetrode with a direct-heating thoriated tungsten cathode. At an operating frequency of 220MHz, the anode dissipation power is 7.5 kW. It’s mainly used in high frequency class C amplifier and modulator.
Specifications:
Filament Voltage……7V
Filament Current……114A
Amplification Factor……8
Interelectrode Capacitances (grid-grounded)
Input……74.1pF Feedback……0.07pF Output……20.6Pf
Mounting……Upright
Cooling……forced air
Weight……3.8kg
Height...217mm
Diameter...142.6mm
Temperature at anode shell and seals……250℃
Maximum ratings:
DC Anode voltage...8kV
DC Anode current...3A
Anode dissipation power...7.5kW
Grid No. 2 dissipation...150W
Grid No. 1 dissipation...50W
Typical conditions
DC Anode Voltage……6.45kV
DC Anode Current……2.2A
DC Grid 2 Voltage……650V
Driving power……240w
Anode dissipation…….7.5kw
Output Power……13.6kW
