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(!!) (Pair) 6AW8A GE NOS 1965-1976 (4.9/21ma and 3.8/21ma) (Shindo)
(!!) (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (48.5ma and 48.6ma)
(!!) (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (51ma and 52.5ma)
(!!) (Recommended Pair) 448A Western Electric tipped top used/good 1965 same date codes (26ma and 27.5ma) (close Gm matching)
(!!) (Recommended Single) 6U8A GE NOS 1977 (14.2ma/10ma)
(!!) (Single) 6AQ5A GE NOS 1963 (45ma)
(!!) 12AU7A RCA CANADA NOS "D" getter halo 1950's tip is chipped (10.0/10.4ma)
(!!) 12AU7A RCA clear top used/good 1960's (7.4/8.6ma)
(!!) 12AU7A RCA clear top used/good 1964 (8.2/8.6ma)
(!!) 6E5 RCA NOS 1945-1949 (2 in stock)
(!!) 6E5 RCA NOS 1960's very slightly tilted glass (bright eye)
(!!) 6E5 RCA NOS 1961 (bright eye)
(!!) 6E5 RCA NOS early 1970 era (bright eye) (2 in stock)
(!!) 6E5 Sylvania NOS 1940's (2 in stock)
(!!) EL84 Ultron USSR Russia used 1990 era (32ma)
(!!) JAN-CRC-6E5 RCA NOS 1945 era in white box bright eye
(!!) JRC-12AU7 RCA NOS long gray plates mid-1950's "D" getter (9/11.6ma)
(!) (- BEST VALUE) 6AU5GT GE gray plates NOS 1960's (1 pair: 55ma and 56ma)
(!) (Best Single) 12SF5GT National Union NOS 1950 (2.1ma Gm=1600)
(!) (Best Single) 6GH8A GE by EI Yugoslavia NOS copper grid posts 1970's (15.5/15.0ma)