The 4CX1500A vacuum tube is a general purpose tetrode for use up to and through VHF. Insulation is ceramic and the thoriated tungsten filament is a rugged mesh design. The screen terminal is a continuous ring which allows good isolation between the plate circuit and the control grid circuit.

 

The 4CX1500A is recommended for use as a Class C power amplifier ,Class B or Class AB1 linear amplifier as a regulator and in pulse modulator service.