(!!!!!) (Best Pair) 12AU7A RCA clear tops NOS 1965-1967 1-3% matched (9.6/9.6ma and 9.0/9.6ma)
(!!!!!) (MATCHED QUAD) JAN-CW-231D Western Electric NOS 1953 (1.7/1.7/1.7/1.7ma) 1-2% matched
(!!!!) (Best 6094 Quad) JAN-CEA-6094 Bendix gold pins NOS 1957 (55/57/57/58ma)
(!!!!) (Best CV4003 Quad) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.4/9.0, 8.4/9.0, 8.4/8.8, 8.4/8.8mA)
(!!!!) (Best GE Quad) 12SN7GTA GE coin-base side getter NOS 1980 (matched quad) 1-3% matched
(!!!!) (Best Overall Quad) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (matched quad) 1-2% matched
(!!!!) (Best Overall Quad) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (matched quad) 1-3% matched
(!!!!) (Best Overall Quad) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.8/8.8, 8.8/8.8, 8.6/8.8, 8.6/9.0mA)
(!!!!) (Best Quad) 6KG6A Westinghouse JAPAN NOS original boxes 1973 (132, 133, 138, 140ma)
(!!!!) (Best Quad) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.8/9.5, 8.8/9.4, 9.0/9.3, 9.0/9.4mA) (Highest Gm 1-2% matched)
(!!!!) (BEST QUAD) JAN-6005W GE NOS 1980-1982 (50.8, 51.0, 51.8, 52.0ma)
(!!!!) (Recommended Pair) EL34 Winged C SED Russian NEW 2002 (93.5/95.3ma)
(!!!!) (Recommended Pair) EL34 Winged C SED Russian NEW 2005 (97.0/99.2ma)
(!!!!) (Recommended Quad) 12SN7GTA GE coin-base side getter NOS 1980 (matched quad) 1-3% matched
(!!!) (1 set of 10) 6V6 GE metal can NOS (10 for $148.88)
(!!!) (Best matched Quad) 56 National Union rebranded Western Electronics NOS 1940's (5.5/5.5/5.6/5.9ma) (matched quad)
(!!!) (MATCHED QUAD) JAN-CW-231D Western Electric NOS 1953 (1.5/1.5/1.5/1.5ma) 1-2% matched
(!!!) (MATCHED QUAD) JAN-CW-231D Western Electric NOS 1953 (1.6/1.6/1.6/1.5ma) 1-2% matched
(!!!) (Recommended Quad) 6V6 GE metal can NOS 1976 (34.0, 34.6, 35, 35mA)
(!!!) (Recommended Quad) 6V6 GE metal can NOS 1976 (35.0, 35.2, 35.2, 35.6mA)