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(!!!) (Recommended Pair) 6JT6A RCA branded GE NOS 1979 (78ma and 80ma)
(!!!) (Recommended Pair) 6JT6A RCA NOS 1960's - 1970 era (66.5ma and 67ma)
(!!!) (Recommended Pair) 6JT6A RCA rebranded GE and Amperex NOS 1970 era (66ma and 67ma)
(!!!) (Recommended Pair) 6KG6A Westinghouse JAPAN NOS original boxes 1973 (158ma and 165ma)
(!!!) (Recommended Pair) 6KG6A Westinghouse JAPAN NOS original boxes 1973 (98ma and 99ma)
(!!!) (Recommended Pair) 713A Western Electric by Tungsol NOS 1942-1943 (6.6ma and 6.9ma) (713A = 717A with black base)
(!!!) (Recommended Pair) 71A Sylvania and Sylvania branded Tungsol NOS 1947-1950 same build (30.2ma and 32.4ma) (Highest mA and Gm)
(!!!) (Recommended Pair) 76 Sylvania NOS - 1 tube branded National Union 1947 era same build (5.3ma and 5.6ma)
(!!!) (Recommended Pair) 7N7 Sylvania NOS branded GE and RCA 1960-1965 (9.4/8.0ma and 8.0/8.4ma) (close Gm)
(!!!) (Recommended Pair) 8417 GE NOS 1969 and 1986 same build (91ma and 94.6ma)
(!!!) (Recommended Pair) 866A GE NOS 1971
(!!!) (Recommended Pair) CX-326 Cunningham balloon used/good 1930 era (5.0ma and 5.2ma)
(!!!) (Recommended Pair) JAN-1619=VT-164 RCA NOS 1943 some surface rust on metal cans (55ma and 57ma)
(!!!) (Recommended Pair) JAN-6384 Tungsol used/test like new 1970-1972 (62.5ma and 66ma)
(!!!) (Recommended Pair) JAN-6922 Sylvania NOS 1971-1979 (17.6/18.3ma and 15.0/18.4ma) (smooth presentation)
(!!!) (Recommended Pair) JEA-6094 Bendix gold pins NOS 1961 (56ma and 59ma)
(!!!) (Recommended Pair) JLRV-6J6WA GE Canada NOS 1960's (6.4/6.6ma and 6.6/6.5ma)
(!!!) (Recommended Pair) JLRV-6J6WA GE Canada NOS 1960's (7.3/6.6ma and 6.8/7.5ma)
(!!!) (Recommended Pair) JTL-5654=6AK5W Tungsol gray plate "D" getter used/good 1956-1958 (6.4ma and 6.5ma)
(!!!) (Recommended Siemens Single) ECC81=12AT7 Siemens branded Mullard NOS circa 1970 (10.0/10.8ma)
