(!!!!) (Best Holland GZ34) GZ34 ADZAM Holland NOS double "D" getter halos 1960 (60/40 and 60/40) (similar sound to metal base from 1955-1958)
(!!!!) (Recommended Single) GZ34 Philips Mullard UK NOS 1969 (59/40 and 60/40)
(!!!!) (Recommended Single) GZ34 Philips Mullard UK NOS 1975 (59/40 and 60/40)
(!!!!) (Recommended Single) GZ34 Philips Mullard UK NOS 1975 (60/40 and 60/40)
(!!!) (Recommended Mullard Pair) GZ34 Philips by Mullard NOS 1975 (60-61/40 and 60-60/40)
(!) 5AR4=GZ34 GE USA black base small bottle 1962 used/good (55/40 and 56/40)
