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(!!!!) (Best Pair #1) 6973 RCA NOS NOS 1969 (42ma and 42.8ma) (close Gm)
(!!!!) (Best Pair #2) 6973 RCA NOS NOS 1969 (45.5ma and 49.6ma)
(!!!!) (Best Pair #3) 6973 RCA NOS NOS 1969 (37.0ma and 39.5ma)
(!!!!) (SINGLE) 6973 RCA branded GE gray plate NOS 1974 (40ma)
(!!!) (Best Pair #2) 6973 RCA black plate NOS and like new 1959 (44ma and 42.5ma)
(!!!) (Best Pair #3) 6973 Sylvania and Sylvania branded GE gray plate NOS 1970's - 1980 (60ma and 58ma)
(!!!) (Best Pair) 6973 Sylvania branded GE gray plates NOS 1970 (44ma and 46ma)
(!!!) (Best Single) 6386 GE branded RCA NOS 1968 (10.2/10.8ma) (sold out)
6973 RCA black plate used/good 1950's (34ma)
6973 RCA gray plate used/good 1970 era (56.5ma)
