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(!!!) (Best Pair) 6BL7GTA Sylvania branded GE NOS 1967-1968 (42.5/39.5ma and 40.2/43.2ma)
(!!!) (Best Pair) 6CS7 RCA gray plates NOS 1970 era (20/10.6ma and 21/12.2ma)
(!!!) (Best Pair) 6FQ7 GE NOS 1970's (9.8/8.8ma and 8.5/9.6ma) (close Gm)
(!!!) (Best Pair) 6HA5=6HM5=EC900 Amperex Holland "Globe Logo" NOS in white boxes 1971-1972 (12.0ma and 12.8ma)
(!!!) (BEST PAIR) 6JB6A RCA branded GE NOS 1960's (80ma and 86ma)
(!!!) (Best Pair) 6K6GT GE black plate D getter NOS 1957-1959 (53.5ma and 54ma)
(!!!) (BEST PAIR) 6K6GT Sylvania coated glass NOS 1940's (1) branded Philco (44ma and 44.6ma)
(!!!) (Best Pair) 6SC7 GE metal can NOS 1953-1955 (2.3/1.9ma and 2.3/2.1ma)
(!!!) (Best Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (10ma and 10.4ma) (same Gm)
(!!!) (Best Pair) 71A Sylvania NOS 1947 branded Hytron 1951 (25.6ma and 27.4ma)
(!!!) (BEST PAIR) 7233 GE NOS 1965 (102-102/60)
(!!!) (BEST PAIR) 7308 Sylvania JAN NOS 1976 in white boxes (14.4/19.4ma and 18.0/15.6ma)
(!!!) (Best Pair) 826 Ken Rad NOS 1942 same date codes original boxes strong emission
(!!!) (Best Pair) 866A RCA NOS 1968 original boxes (63-64/40 x 2 tubes)
(!!!) (BEST PAIR) JAN-CYS-1616=1616 Sperti, Inc. NOS made by RCA 1944 (Space Tech Labs power supply STR-104)
(!!!) (BEST PAIR) JHY-0B2WA CBS NOS 1960 (neon gas) (1 pair)
(!!!) (Best Pair) JRP-5687WA and JAN-5687WA Raytheon bronze plates tests like new 1964 era faded printing (33.4/36.4ma and 33.5/33.0ma)
(!!!) (Best Pair) JW-6AS6=409A Western Electric NOS 1949-1950 (5.0ma and 5.2ma) (Best Sound)
