(!!!) (Recommended Pair) 6SC7 GE metal can NOS 1969-1977 (1.7/1.9ma and 1.6/1.8ma) (same Gm)
(!!!) (Recommended Pair) 6SC7 GE metal can NOS 1977 (1.7/1.7ma and 1.7/1.8ma) 1-2% matched
(!!!) (Recommended Pair) 6SC7 GE NOS 1977 (1.7/2.1ma and 1.8/2.1ma) 1-3% matched
(!!!) (Recommended Pair) 6V6GT GE NOS 1963 (43ma and 45.5ma)
(!!!) (Recommended Pair) 6V6GTA Sylvania NOS 1960's (37.5ma and 39.5ma)
(!!!) (Recommended Pair) 6V6GTA Sylvania NOS 1960's - 1970 (45.5ma and 48.5ma)
(!!!) (Recommended Pair) 6V6GTA Sylvania NOS 1970 era same build (40ma and 41ma)
(!!!) (Recommended Pair) 6V6GTY GE brown base NOS 1964-1965 (44ma and 43ma)
(!!!) (Recommended Quad) 5Y3GT Philips Holland NOS 1960's (1 set of 4)
(!!!) (Recommended Single 1962) ECC83=12AX7 Mullard Webcor ribbed plates used/very good 1962 (161 series) in white box (1.0/1.1ma and Gm=1600/1600)
(!!!) (Recommended Single) 12AX7A RCA gray ribbed plates NOS 1971 (Gm=1600/1800 and 1.2/1.4ma)
(!!!) (Recommended Single) 12AY7 GE NOS 1970 (2.0/2.3ma)
(!!!) (Recommended Single) 12AY7 Tungsol tall gray ribbed plates rebranded Raytheon NOS "D" getter 1950's (3.3/4.0ma)
(!!!) (Recommended Single) 5Y3GT RCA NOS 1974 (60/40 and 65/40)
(!!!) (Recommended Single) ECC83=12AX7 Mullard Webcor ribbed plates used/good 1962 (161 series) in white box (1.0/0.7ma and Gm=1600/1400)
(!!!) (Single 1955) JG-12AY7 GE "D" getter like new 1955 (3.3/2.7ma) (High Gm)
(!!!) (Single 1956) 12AY7 GE "D" getter like new 1956 (3.1/2.8ma)
(!!!) (Single) 6072 RCA NOS gray plates 1967 (2.0/1.9ma) (Fender, Apex)
(!!!) 6V6G RCA used/good 1940's (33.5ma)
(!!!) 6V6G RCA used/good 1940's (38.4ma)
