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(!!!!!) (Best Pair #1) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (10.2/11.5ma and 10.2/11.2ma) 1-3% matched (close Gm) (similar sound to RCA) (rare)
(!!!!!) (Best Pair #1B) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (11.6/10.8ma and 11.3/11.6ma) 1-3% matched (close Gm) (similar sound to RCA) (rare)
(!!!!!) (Best Pair #3) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (12.6/11ma and 12.8/10.5ma) (close Gm) (similar sound to RCA) (rare) (Copy)
(!!!!!) (Best Pair #4) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (16/12ma and 13.0/12.9ma) (close Gm) (similar sound to RCA) (rare)
(!!!!!) (Best Pair #5) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (8.8/9.8ma and 8.8/9.3ma) 1-3% matched (similar sound to RCA) (rare) (McIntosh, VTL, Manley, Quicksilver)
(!!!!!) (READ REVIEW) 6J5GT Raytheon black ribbed plate NOS 1950 era (9.2ma and 9.2ma) 1-2% matched
(!!!!!) (Recommended 5 Star Single) 5751 GE "5 Star" gray plates triple mica "O" getter 1959 like new (2.5/2.4ma)
(!!!!!) (Recommended 5 Star Single) 5751 GE "5 Star" gray plates triple mica "O" getter 1960 like new (2.2/2.1ma) (same Gm)
(!!!!!) (Set of 4) 6J5GT Raytheon black ribbed plate NOS 1950 era (set of 4 tubes between 7-10ma)
(!!!!!) (Single) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (9.8/14.2ma) (similar sound to RCA) (McIntosh, VTL, Manley, Quicksilver)
(!!!!) (Best Pair) 6J5GT Raytheon metal base black ribbed plate NOS 1940's (8.5ma and 8.7ma) (1-3% matched)
(!!!!) (Best Single #1) ECC35=6SL7GT Mullard brown base "D" getter halo NOS 1950-1955 era (3.2ma and 3.0ma)
(!!!!) (Best Single 1958) 5751 Sylvania black plates triple mica D getter halo 1958 like new (2.5/2.3ma)
(!!!!) (Best Single 1973) 6201=12AT7WA GE branded Raytheon black plates triple mica O getter 1973 (8.5/8.2ma)
(!!!!) (Best Single) 12BH7A GE ribbed plates NOS 1980 (10.0/10.2ma) 1-3% section balance
(!!!!) (Best Single) 5692 RCA RED BASE black plates like new 1950 (10.0/9.2ma)
(!!!!) (Best Value Pair) 6J5GT Raytheon black ribbed plate NOS 1940's (8.0ma and 8.2ma)
(!!!!) (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)
(!!!!) (PAIR) 5751 Hitachi Japan glossy black ribbed plates triple mica double D getters 1960's (2.0/2.2ma and 1.8/2.2ma) (rare)