(!!!) (Recommended Single) 6X5GT Sylvania Silvertone NOS 1945 (52/40 and 53/40)
(!!!) (Recommended Single) JTL-6X4W Tungsol NOS 1955 curved "D" getter (48/40 and 50/40)
(!!!) (Recommended Single) JTL-6X4W Tungsol NOS 1955 curved "D" getter one section of internal plate bent at bottom (52/40 and 57/40)
(!!!) (Recommended Single) JTL-6X4WA Tungsol NOS 1962 curved "D" getter (55/40 and 60/40)
(!!!) (Single) 6X5GT Sylvania Philco NOS 1945 (53/40 and 56/40)
(!!!) (Single) ECL82=6BM8 Adzam Holland NOS 1968 (2.3/39ma)
(!!!) (slightly microphonic Single) E182CC=7119 Amperex PQ Holland NOS large "O" getter halo 1970 (35/37.2ma)
(!!!) 5Z4G Brimar UK gray plates used/good 1960 era (60/40 and 62/40)
(!!!) 5Z4G Brimar UK gray plates used/good 1960 era (63/40 and 64/40)
(!!!) 6X5GT RCA black plates NOS 1953 (50/40 and 54/40)
(!!!) 6X5GT RCA NOS 1965 (60/40 and 64/40)
(!!!) 6X5GT RCA NOS 1969 (47/40 and 56/40)
(!!!) JTL-6X4W Tungsol NOS 1955 curved "D" getter halo (45/40 and 52/40)
(!!) (#1 5687 Tungsol used 1961) 5687WA Tungsol bronze plates "O" getter halo used/very good 1961 (33.4/34.8ma)
(!!) (1 set of 10) 6SH7 GE metal can NOS (10 tubes for $34.99)
(!!) (Best Pair) 6SH7 GE metal can NOS 1942-1945 (10.2ma and 10.2ma)
(!!) (Best Pair) 6SH7 GE metal can NOS 1970-1981 (11ma and 11.2ma)
(!!) (Best Pair) 6SH7 GE metal can NOS 1976 (11.2ma and 11.4ma) ** 1-2% matched (same Gm)
(!!) (Best Pair) 6SH7 GE metal can NOS 1976 (12.2ma and 12.4ma) **
(!!) (Best Quad) 6SH7 GE metal can NOS 1976 (10.2, 10.2, 10.2, 10.2mA)
