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12HG7=12GN7A Delta Gold Seal Toshiba Japan like new (37ma)
12HG7=12GN7A GE Japan NOS (1 pair in stock)
12HG7=12GN7A Magnavox by Hitachi Japan NOS (34ma)
12HG7=12GN7A RCA NOS (30ma)
12HG7=12GN7A Sylvania NOS (33ma)
12HG7=12GN7A Sylvania NOS (42ma)
12HG7=12GN7A US Brands NOS (0 in stock)
12HG7=12GN7A Westinghouse by Toshiba Japan NOS (50ma)
12JB6A GE NOS 1970's (75.5ma)
12SA7Y RCA brown bottom NOS 1955 (4.7ma)
12SK7GT RCA NOS 1940's (8.6ma)
12SK7GT RCA NOS 1940's (9.0ma)
12SK7GT Rogers Canada used/tests like new 1950's slightly tilted glass (8.8ma)
12SK7GT Tungsol used/tests like new 1940's, 50% of base is rusted/tarnished (8.6ma)
12SK7GT Wizard by Sylvania used/good 1940's (7.5ma)
12SN7GT RCA branded CHIEF NOS 1963 (8/9.2ma)
12SN7GT RCA NOS 1960 with plate support rods (8.0/8.2ma) 1-2% section balance
12SN7GTA GE Honeywell gray plates used/good 1960's (6.0/6.8ma)
12SN7GTA RCA coin-base branded GE NOS 1980 (12.2/12.2ma) 1-2% section balance
12SR7 metal can NOS (20 in stock)
