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(!) (PAIR) 0D3 RCA NOS 1951-1969 same build (argon)
(!) (Pair) 12AU6 RCA NOS 1973 (10.6ma and 10.0ma)
(!) (Pair) 12AU6 RCA NOS 1973 (9.2ma and 9.2ma) 1-2% matched
(!) (Pair) 12B4A RCA NOS 1971-1974 (42ma and 36.5ma)
(!) (PAIR) 12DQ6B GE NOS 1961 and 1973 (55ma and 51ma)
(!) (PAIR) 12HG7=12GN7A Sylvania branded RCA coated glass NOS (37ma and 40ma)
(!) (PAIR) 12HG7=12GN7A Sylvania branded RCA coated glass NOS (51ma and 52ma)
(!) (PAIR) 2C26 Hytron NOS 1944 (68/38 and 72/38)
(!) (PAIR) 2C26 Hytron NOS 1944 (73/38 and 76/38)
(!) (PAIR) 2C26 National Union NOS 1940's (67/38 and 69/38)
(!) (Pair) 37 Philco engraved base 1930's used/test strong (6.8ma and 7.6ma)
(!) (Pair) 404A Western Electric used/good 1963-1966 (17.0ma and 17.2ma)
(!) (Pair) 404A Western Electric used/good 1963-1969 (16.5ma and 17.6ma)
(!) (Pair) 417A Western Electric used/good 1977 (12.2ma and 14ma)
(!) (Pair) 5651 Tungsol branded GE NOS 1965-1966
(!) (PAIR) 5727=2D21W Amperex by GE NOS 1979
(!) (PAIR) 5BQ7A Dumont by GE gray plates NOS 1973 "U" and "O" getter (7.0/7.4ma and 7.0/6.6ma)
(!) (PAIR) 5BQ7A Dumont by GE gray plates NOS 1973 (8.3/8.0ma and 8.6/9.8ma)
(!) (PAIR) 6AS6 RCA gray plate NOS 1962-1965 (5.5ma and 5.5ma)
(!) (PAIR) 6AS6 Sylvania branded RCA black plate NOS 1978 (4.8ma and 5.2ma)
