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(!!) (SINGLE) 12AT7 RCA used/good 1960's (5/6ma)
(!!!!) (Good Value Pair) JAN-5687WB GE used/good 1970 era (29.5/31ma and 29.2/29.6ma)
(!!!!) (Best Overall Pair) 5U4GB RCA NOS 1975 same date codes (61-60/40 and 60-60/40) 1-2% matched (Best Sound)
(!!!!!) (SINGLE) 7581A=6L6GC GE brown base like new 1967 reboxed (76ma) (rare)
(!!) (Best Value Single) ECC85=6AQ8 RCA Canada NOS 1970's faded printing (12.2/13.0ma)
5651A Sylvania rebranded RCA NOS 1983 (1 in stock)
(!!!) (Best Single) 6L6GC RCA black plate NOS 1968 (72.5ma)
(!!!) (Best Pair) JRC-5751 RCA NOS black plates double mica 1962 (2.7/2.3ma and 2.7/2.9ma) (similar to Command Series)
(!!!!) (Best Pair #1) 807 RCA black plate NOS 1969 (62ma and 63ma) 1-3% matched (Same Gm)
(!) (Best Value Single) 5687WA Sylvania JAN used/good faded printing 1970's (31/35.8ma)
(!!!) (Best Overall Single) 2A3 RCA black plates NOS 1940's (114ma) (high Gm)
5879 RCA triple mica "O" getter halo used/tests like new 1962 (1.5ma)
(!!!) (Best Value Pair) 866A RCA like new 1956-1959 in white boxes (60-62/40 x 2 tubes)
(!!) 6X4 RCA NOS 1969 (50/40 and 51/40)
6197=6CL6 RCA gray plate NOS 1971 (30ma)
(!!) JAN-CRP-5687WA Raytheon black plates "O" getter halo 1962 used/tests like new (44.5/39ma)
(!!!!) (Best Pair #2) 12AX7A RCA ribbed plates NOS 1965-1968 (1.4/1.0ma and 1.3/1.1ma) (Fender Rogue, McIntosh)
(!!) (SINGLE) 5963=12AU7 RCA NOS 1965 (10.8/13.2ma)
(!!!) (Recommended Pair) JAN-1619=VT-164 RCA NOS 1943 some surface rust on metal cans (55ma and 57ma)
(!!!) (Best Single) 6AN8 RCA branded Raytheon "D" getter gray plates NOS 1960 era (16.5/15.5ma)
