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6S7G Coronado NOS 1940's (2 in stock)
6S7G RCA NOS 1940's
6S7G Zenith by Sylvania tests like new 1930's (96/60)
6S8GT Tungsol tests like new scratches on base 1952 (102/60)
6S8GT used/good no printing 1950 era (102/60)
6SA7 Ken Rad NOS 1940's (1 in stock)
6SA7GT Delco NOS 1940's (101/60)
6SA7GT Delco NOS 1940's (94/50)
6SA7GT GE NOS 1943 (96/60)
6SA7GT RCA NOS 1940's (95/60)
6SA7GT RCA NOS 1950's (95/60)
6SA7GT Sylvania NOS 1940's (97/60)
6SA7GT Sylvania NOS 1940's (98/60)
6SB7Y GE NOS 1962 (3 in stock)
6SB7Y RCA used/good (1 in stock)
6SB7Y US Brands NOS (1 in stock)
6SC7 GE NOS 1970 era (1.6/1.7ma) 1-2% section balance
6SC7=VT-105 RCA used/good 1940's (1.4/1.5ma)
6SD7GT Continental by National Union NOS 1950 era (11.6ma)
6SD7GT Ken Rad NOS 1940's (11ma)
