The 4CX7500R is a metal-ceramic, forced air-cooled tetrode with a direct-heating thoriated tungsten cathode. At an operating frequency of 100MHz, the anode dissipation power is 12 kW. Dissipation power for grid No.1 and No.2 is 75w and 250w respectively. The tube is mainly used in high frequency class C amplifier and modulator.
Specifications:
Filament Voltage……7.5V
Filament Current……76A
Amplification Factor……4.5
Interelectrode Capacitances (grid-grounded)
Input……53pF Feedback……0.16pF Output……21Pf
Mounting……Upright
Cooling……forced air
Temperature at anode shell and seals……250℃
Maximum ratings:
DC Anode voltage...7.5kV
DC Anode current...3A
Grid 1 dissipation……75V
Grid 2 dissipation……250V
Anode dissipation power...5kW
Typical conditions
DC Anode voltage...7.5kV
DC Anode current...3A
Grid 1 dissipation……75V
Grid 2 dissipation……250V
Anode Output Power……5kW
