(!!!!) (Best Overall Pair) 5670W GE NOS 1986 (10.0/10.2ma and 9.8/9.9ma) 1-3% matched (Highest Ma and Gm)
(!!!!) (Best Pair) 5670W GE NOS 1986 (8.0/8.0ma and 8.2/8.4ma) 1-3% matched
(!!!!) (Best Pair) 5670W GE NOS 1986 (8.6/8.8ma and 8.4/9.0ma) 1-3% matched
(!!!!) (Recommended Pair) 5670W GE NOS 1986 (7.5/10.6ma and 7.6/10ma) 2-3% matched **
(!!!!) (Recommended Pair) 5670W GE NOS 1986 (7.6/8.4ma and 7.6/8.8ma)
(!!!!) (Recommended Pair) 5670W GE NOS 1986 (8.0/8.2ma and 7.6/8.4ma) 1-3% matched
(!!!!) 2C51 Sylvania NOS 1960's (7.4/8.4ma)
(!!!) (Best Single) JTL-5670=2C51 Tungsol black plates "O" getter NOS 1959 (7.2/8.2ma)
(!!!) (triple mica) 5670 GE rebranded RCA triple mica with D getter halo 1957 (5.6/6.2ma)
(!!!) JHS-5670 Sylvania NOS 1966 (6.0/8.6ma)
(!!) (Matched set of 3) 5670W GE NOS 1986 (8.0/8.6ma and 8.2/8.4ma and 8.2/8.6ma) 1-3% matched
(!!) (Recommended Sylvania) 5670 Sylvania NOS 1960 "D" getter halo (8.2/10.4ma)
