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501AX Raytheon NOS
(!!!) (slightly microphonic) 6922=E88CC Tesla Czech Republic NOS 1970 (22/21ma)
6JC6A Sylvania NOS 1970's (9.6ma)
(!) (Best Pair) 14GT8/14JG8 GE NOS 1977 (110-111/60)
(!!) 6SH7 GE metal can NOS 1942-1945 (12.5ma)
(!!) 6SH7 GE metal can NOS 1942-1945 (11.6ma)
6AV6 Lafayette Taiwan NOS 1970's (1.3ma)
6AV6 Lindal Japan NOS 1970's (1.3ma)
6AV6 National Japan NOS 1970's (1.2ma)
(!!!) (Recommended Single) 6BK7B Tungsol gray plates NOS 1960's (8.0/9.8ma) (great sub for 6N1P)
6AG5 GE "D" getter NOS 1955 (7.6ma)
(!!!) (Best Pair #1) 6BL7GTA GE black plates NOS 1959-1960 (50/49ma and 49/52.5ma)
(!) 404A Western Electric used/good (17ma)
(!) (Pair) 404A Western Electric used/good 1963-1969 (16.5ma and 17.6ma)
(!!) (BEST PAIR) 6CS7 GE Canada black plates NOS 1964-1970 (20/11ma and 20.6/10ma)
(!!) (Best Single) JW-6AK5 Western Electric NOS "D" getter 1953 (6.2ma)
(!!) 403B=6AK5 Western Electric NOS "O" getter 1980 in 1979 box (5.8ma)
(!!) 403A=6AK5 Western Electric NOS "D" getter 1971 (6.8ma)
12J7GT Sylvania Zenith NOS 1954 era hairline crack in base (101/60)
12J7GT National Union NOS 1950 era very small hairline crack in base (102/60)