(!!!) (Recommended Pair) 8417 GE NOS 1969 and 1986 same build (91ma and 94.6ma)
(!!!) (Recommended Pair) ECL86=6GW8 Philips and Philips Miniwatt Holland NOS 1965-1970 (1.1/1.3ma and 27/26ma)
(!!!) (Recommended Pair) EL84 Brimar England NOS 1962 (59ma and 60ma) (very sweet) (recommended for FIXED-BIAS amp only due to high current)
(!!!) (Recommended Pair) EL84 Telefunken Germany <> bottom used/test like new 1961 and 1969 (47ma and 48.5ma)
(!!!) (Recommended Pair) EL86 Valvo Holland NOS original boxes 1969 (59.5ma and 61.5ma)
(!!!) (Recommended Pair) JAN-6384 Tungsol used/test like new 1960's (66.5ma and 68.5ma) 1-3% matched
(!!!) (Recommended Pair) JAN-6384 Tungsol used/test like new 1970-1972 (62.5ma and 66ma)
(!!!) (Recommended Pair) JAN-CNU-1625=VT-136 National Union NOS 1940's (80/40 and 78/40)
(!!!) (Recommended Pair) JEA-6094 Bendix gold pins NOS 1961 (56ma and 59ma)
(!!!) (Recommended Pair) JEA-6094 Bendix NOS 1959-1961 pins gently cleaned (57.5ma and 59ma) (matched on Amplitrex)
(!!!) (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)
(!!!) (Recommended Quad) 6V6 GE metal can NOS 1976 (36.4, 36.5, 36.5, 36.6mA)
(!!!) (Recommended Quad) 6V6 Sylvania metal can NOS 1970 era (35.0, 35.4, 35.8, 35.8mA)
(!!!) (Recommended Quad) 6V6 Sylvania metal can NOS 1970 era (39.6, 39.8, 40.0, 40.2mA)
(!!!) (Recommended Single) 5881 Tungsol NOS 1950's branded 6L6GB (86ma)
(!!!) (Recommended Single) 5881 Tungsol rebranded Sylvania 1960 era (77.5ma)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (115/111mA)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (124/130mA)
(!!!) (Recommended Single) 6336A Tungsol NOS 1960 era (75/80ma) ***