The 6AX5GT is an octal-base indirect-heated full-wave rectifier tube designed for power supply applications in television receivers, audio amplifiers, and radio equipment. Featuring an indirectly heated cathode structure rather than a filament, it provides a controlled warm-up time that reduces voltage stress on filter capacitors during turn-on. It shares the same pinout as the popular 6X5GT but features higher current-handling capabilities. Operates on a 6.3V heater and fits standard 8-pin octal sockets. Available NOS and tested used.