GZ34 Mullard code f32 B4 B5 matcched pair CV1377 5AR4 best tubes pair tested 100%

Description

The GZ34 was first introduced in 1954 and described by Philips Mullard as a high current rectifier for any set. It is an indirectly heated valve having the cathode attached to one side of the heater 

AudioMagical will show mostly all GZ34 variations with codes and pictures of them all.

Second pair of Mullard GZ34 with original boxes, holed spigot technically beautiful valves.

Same shape and construction

Both GZ34 Mullard have f32 code with B4 and B5 made at Blackburn

Tested with AVO 163 at 100% on both anodes A1=A2 100%