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(!!!!) (1 Pair) 5654=6AK5 Raytheon Toshiba Japan NOS 1970's (6.9ma and 7.3ma)
(!!!!) (1 Pair) 5654=6AK5 Raytheon Toshiba Japan NOS 1970's (7.2ma and 7.3ma) (same Gm)
(!!) 5654=6AK5 RCA Command Series black plate NOS 1968 (6.8ma)
(!) (Best SIngle) EF95=6AK5 Raytheon Toshiba Japan NOS 1960's (8.6ma)
6AK5 Westinghouse NOS 1970 (5.8ma)
6AK5 Westinghouse NOS 1970 (6.6ma)
EF95=6AK5 Raytheon Toshiba Japan NOS 1960's (6.1ma)
EF95=6AK5 Raytheon USA NOS 1957 (7.5ma)