(!!) (BEST VALUE) GZ34 Mullard rebranded Sylvania used/like new 1969 (58/40 and 60/40)
(!) (Good Value Single) GZ34=5AR4 Dynaco Mullard brown base used/good 1968 (57/40 and 57/40)
(!) (Good Value Single) GZ34=5AR4 Mullard branded Siemens used/good 1972 vertical scrapes on base (56/40 and 56/40)
