Specification :

The 4CX7500A is a compact tetrode designed to
be used in VHF power amplifier service. It features
a type of internal structure which results
in high RF operating efficiency up to 220 MHz. A
dense mesh filament is used which contributes to
the high performance capability of the tube. This
tube is also recommended for use as a VHF TV
linear amplifier.
Characteristics:
Plate Dissipation ( Max.) 7, 500 Watts
Screen Dissipation ( Max.) 165 Watts
Grid Dissipation ( Max.) 50 Watts
Frequency for Max. rating ( CW) 220 MHz
Amplification Factor 8.0
Filament/ Cathode Thoriated Tungsten
Voltage 7.0 Volts
Current 110 Amps