The GZ34 is an example of a typical high current rectifier for small equipment use. It is indirectly heated but the cathode is tied to one side of the heater.
The transformer HT winding would be centre tapped. The centre going to ground. As each anode goes positive in turn the current flows, this way rectification takes place on every half cycle, and gives the name full wave.
The construction uses a glass foot base rather than a pinch and keeps the IO base format.
The glass also contains the Type designation of CV1377.
The twin rectifier sections. The anodes have flanges on all four sides for maximum radiating area.
The folded sheets are stitched together. The absence of the pinch lowers the overall height required.
The wide glass tube envelope is 32 mm in diameter and, excluding the IO base pins, is 69 mm tall.
References: Data-sheet & 1040. Type GZ34 was first introduced in 1954. See also1954 adverts.
