(!!!!) (Best Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.6ma)
(!!!!) (Best Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (8.0ma)
(!!!!) (Best Value Pair 1965 era) 12AX7=ECC83 Philips Miniwatt Holland like new 1964-1965 era (1.3/1.2ma and 1.1/1.2ma)
(!!!!) (Best Value Pair) 6021=CV3986 Mullard UK Whyteleafe plant NOS 1972 original boxes (4.4/7.0ma and 4.8/6.0ma)
(!!!!) (Best Value Pair) 6BQ7A RCA black plates NOS "D" and "U" getter 1957 (9/16ma and 9/14.5ma)
(!!!!) (Best Value Single) ECC803S=12AX7 Telefunken Ulm Germany <> bottom NOS 1961 1-2% section balance (Gm=1550/1600) (1.1/1.1ma)
(!!!!) (GOOD VALUE PAIR) 408A Western Electric NOS 1972 and 1976 (78/60 and 80/60)
(!!!!) (Good Value Pair) 6FQ7 RCA clear top NOS 1970's (6.0/6.4ma and 6.4/7.4ma) (STAX, MARANTZ, CONRAD JOHNSON)
(!!!!) (Good Value Pair) 6JT6A RCA like new and NOS 1960's (58ma and 60ma)
(!!!!) (Pair) 0D3 Hytron NOS and like new 1948 (argon)
(!!!!) (Pair) JAN-6C4WA Sylvania NOS 1975 (7.8ma and 8.6ma)
(!!!!) (Recommended Pair) 27 Philco by Sylvania NOS 1940's (5.5ma and 5.3ma)
(!!!!) (Recommended Pair) 27 Philco by Sylvania NOS 1940's (5.7ma and 5.5ma)
(!!!!) (Recommended Pair) 5814A Philips JAN NOS 1985 (9.0/10.4ma and 9.0/10.7ma) 1-2% matched
(!!!!) (Recommended Pair) 6922 Sylvania NOS 1960's (11.6/13.4ma and 12.6/13.6ma)
(!!!!) (Recommended Pair) 6922 Sylvania NOS 1960's (12.0/12.8ma and 11.0/12.4ma)
(!!!!) (Recommended Pair) 6922 Sylvania NOS 1960's-1970 era (10/12.2ma and 10.5/12ma)
(!!!!) (Recommended Pair) 6BK7B GE black plates NOS "U" getter halo 1960-1961 (7.2/7.2ma and 6/7ma) (Best 6N1P sub)
(!!!!) (Recommended Pair) 6BQ7A RCA black plates NOS 1964-1968 (9.2/11.2ma and 10.2/11ma)
(!!!!) (Recommended Pair) 6BQ7A RCA black plates NOS 1967 same date codes (11.8/12ma and 11/12.2ma)