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(!) (BEST PAIR #2) 6663=6AL5 GE NOS 1962-1965 (46-46/40 and 47-48/40) (Copy)
(!) (BEST PAIR #2) 6AS6 RCA gray plate NOS 1965-1974 (5.1ma and 4.6ma) (tubedrve)
(!) (BEST PAIR #2) 6GY6 RCA NOS 1971 (87/60 and 87/60)
(!) (Best Pair #2) 6SF7 Raytheon NOS 1955 (12.8ma and 13.4ma)
(!) (BEST PAIR #2) JAN-5725W=6AS6 Philips by Sylvania black plate NOS 1982 (5.2ma and 5.2ma) 1% matched
(!) (Best Pair #3) 12AU6 RCA NOS 1957-1961 (9.6ma and 10.2ma)
(!) (Best Pair #3) 6661=6BH6 GE NOS 1970's (6.2ma and 6.2ma)
(!) (BEST PAIR #3) 6GY6 RCA NOS 1971 (82/60 and 83/60)
(!) (Best Pair #4) JAN-6528A Cetron USA NOS and like new 1980-1989 (94/127mA and 97/134ma)
(!) (Best Pair 1950's) 5651 RCA NOS 1950's (1 pair)
(!) (BEST PAIR) 0C3 RCA NOS - 1 tube branded GE 1959 and 1962 (1 pair) (argon)
(!) (Best Pair) 0D3 RCA NOS 1951 (argon)
(!) (Best Pair) 0D3W Chatham by Tungsol NOS 1951 (high stability 0D3) (argon)
(!) (BEST PAIR) 12D4 GE gray plate NOS 1961-1964 (52/40 and 52/40)
(!) (BEST PAIR) 12D4 RCA black plate NOS 1960's (52/40 and 52/40)
(!) (Best Pair) 14GT8/14JG8 GE NOS 1977 (110-111/60)
(!) (BEST PAIR) 20LF6 GE Zenith NOS 1978 same date codes (100/60 and 100/60)
(!) (Best Pair) 2A5 Tungsol NOS 1945 (90/50 and 90/50)
(!) (BEST PAIR) 5727=2D21 RCA NOS 1958 (1 pair)
(!) (Best Pair) 6661=6BH6 GE NOS 1960's (6.3ma and 6.4ma)
