GZ34, 5AR4, CV1377, RECTIFIER, OCTAL

The GZ34 is a high current bi-phasic rectifier having a squat envelope profile. These devices are indirectly heated with the cathode tied to one side of the heater filament and powered from a grounded centre tapped transformer.  As each anode goes positive, current flows with rectification occurring at each half cycle with the product being full wave rectified HT.

This device is the rectifier of choice for so many classic valve hifi and guitar amplifiers but there are also many contemporary amplifiers where the GZ34 does duty.