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(!!!!!) (Best GZ34) GZ34 Teonex by Mullard UK fat brown base 1959 (58/40 and 58/40) (f31 series) (similar to metal base)
(!!!!!) (Best Single 1966) GZ34 Mullard Blackburn UK made for Knight NOS 1966 (58/40 and 58/40)
(!!!!!) (Best Single 1971) GZ34 Philips by Mullard Blackburn UK NOS 1971 (58/40 and 58/40)
(!!!!!) (Best Single) GZ34 Mullard Blackburn UK branded RCA NOS 1967 (57/40 and 58/40)
(!!!!!) (Best Value 1961) GZ34 Mullard UK shield logo fat base 1961 low hours/like new (53/40 and 55/40) (f31 series)
(!!!!!) (Best Value Pair) GZ34=5AR4 Mullard UK branded RCA NOS 1970 (f32 series) (56-57/40 and 56-58/40)
(!!!!!) (Recommended Single) 5AR4/GZ34 Mullard fat base tests like new 1961 no printing (57/40 and 57/40)
(!!!!) (Best Mullard Single 1963) GZ34 Mullard NOS rebranded Philips Miniwatt NOS 1963 (60/40 and 62/40)
(!!!!) (BEST SINGLE 1970) GZ34 Mullard Blackburn UK NOS branded RCA 1970 (60/40 and 60/40)
(!!!!) (Best Value Single 1962) GZ34 Mullard UK branded Webcor 1962 low hours/like new (59/40 and 60/40)
(!!!!) (Best Value Single) GZ34 Mullard NOS rebranded Tungsram NOS 1972 (54/40 and 60/40)
(!!!!) (Best Value Single) GZ34 Philips Miniwatt Holland double "D" getters 1962 low hours/tests like new (58/40 and 58/40) (Modwright, Cary, Line Magnetic, Woo)
(!!!) (Best Value Pair) GZ34 Raytheon Japan by Matsushita NOS similar sound and build to Mullard NOS 1970's (60-60/40 x 2 tubes) 1% matched (LS300, Dynaco, Latino, Scott, Marshall, Fender, Cary)
(!!!) (Best Value Single 1969) GZ34 Mullard UK branded POPE NOS 1969 (58/40 and 60/40)
(!!!) (BEST VALUE) GZ34=5AR4 HH Scott Holland D getters used/strong 1959 (56/40 and 58/40)
(!!!) (READ REVIEW) GZ34 Mullard UK shield logo NOS 1962 (59/40 and 59/40)
(!!!) (Single) GZ34 Philips Miniwatt Holland metal base NOS/80% 1955 spot welded plates (48/40 and 48/40) (1st series made)
(!) (READ REVIEW) CV1377=GZ34 Mullard Blackburn UK NOS 1976
(!) (READ REVIEW) GZ34 Mullard UK shield logo NOS 1962
(!) (READ REVIEW) GZ34 Raytheon Japan by Matsushita NOS similar sound and build to Mullard NOS 1970's (59/40 and 59/40 x 2 tubes)