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(!!!!!) (Best Single #2) JG-6072 GE double mica black plates "O" getter NOS 1963 (3.3/3.1ma) (AKG, Tele 251, Peluso, Rode) (similar sound to 5-Star GE)
(!!!!!) (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)
(!!!!!) (Best Value Single) 12AX7 Amperex Bugle Boy Holland red-tip used/good 1966 (0.8/1.6mA and Gm=1400/1800) (red tip mil-grade)
(!!!!!) (READ REVIEW) 6J5GT Raytheon black ribbed plate NOS 1950 era (9.2ma and 9.2ma) 1-2% matched
(!!!!!) (Recommended Single) 5AR4/GZ34 Mullard fat base tests like new 1961 no printing (57/40 and 57/40)
(!!!!!) (Recommended Single) JG-6072 GE triple mica black plates "O" getter NOS 1962 (2.9/2.3ma) (AKG, Tele 251, Peluso, Rode) (similar sound to 5-Star GE)
(!!!!!) (Set of 4) 6J5GT Raytheon black ribbed plate NOS 1950 era (set of 4 tubes between 7-10ma)
(!!!!) (Best Holland Pair) EF86 ADZAM Holland NOS 1963-1964 (3.5ma and 3.5ma) 1-3% matched
(!!!!) (Best Overall Single) 6072 GE "5-Star" NOS black plates triple mica "O" getter halo 1960 (3.5/3.4ma) (mic grade) (Highest mA and Gm)
(!!!!) (Best Pair #2) EF86 ADZAM made by Valvo Germany NOS 1970 (3.1ma and 2.9ma) 1-5% matched
(!!!!) (Best Pair 1971) 12AX7 Philips Holland NOS 1971 (1.2/1.2ma and 1.2/1.3ma) 1-3% matched
(!!!!) (Best Pair) 6J5GT Raytheon metal base black ribbed plate NOS 1940's (8.5ma and 8.7ma) (1-3% matched)
(!!!!) (Best Single 1958) CV455=ECC81=12AT7 Mullard UK "D" getter NOS 1958 (8.7/8.8ma) 1-2% section balance (Same Gm)(reverb, phase inverter)
(!!!!) (Best Single) 6BM8=ECL82 Philips Import by Mullard UK NOS 1969 (2.1ma/46ma)
(!!!!) (Best Single) 6SL7GT Sylvania NOS branded Zenith 1950's tall bottle (2.9/2.9ma) 1-2% section balance
(!!!!) (Best Value 1965) 12AX7 Philips Miniwatt Holland like new 1965 (Gm=1900/1700 and 1.5/1.2ma)
(!!!!) (Best Value Pair) 6J5GT Raytheon black ribbed plate NOS 1940's tilted bottom mica (8.6ma and 8.2ma) (best value)
(!!!!) (Best Value Pair) 6J5GT Raytheon metal base black ribbed plate NOS 1940's (9.6ma and 9.8ma) (1-3% matched)
(!!!!) (Best Value Single) ECC83=12AX7 Mullard Webcor ribbed plates used/very good 1962 (161 series) (1.0/0.9ma and Gm=1500/1500) 1-3% section balance
