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12J5GT RCA NOS (6.7ma)
12J5GT RCA NOS 1954 slightly tilted glass (11ma)
12J5GT Sylvania NOS 1940's (9.6ma Gm=2900)
12J5GT Tungsol NOS 1940's (10.6ma Gm=2800)
12J7G Philco Sylvania 1940's like new (100/60)
12J7GT Hytron NOS 1950 era hairline crack in base (102/60)
12J7GT National Union NOS 1950 era very small hairline crack in base (102/60)
12J7GT RCA used/good 1945 era (92/60)
12J7GT RCA used/strong 1948 (100/60)
12J7GT Sylvania Zenith NOS 1954 era hairline crack in base (101/60)
12MD8 NOS (10 in stock)
12Q7G Zenith by Sylvania NOS 1946-1947 (36/20)
12SA7Y RCA brown bottom NOS 1955 (4.7ma)
12SC7 International Canada NOS, probably made by GE (2.0/2.1ma)
12SC7 International Canada NOS, probably made by GE (2.3/2.8ma)
12SC7 Ken Rad NOS 1940's (5 in stock)
12SC7 Philco NOS 1940's (1.8/1.8ma) 1% section balance
12SC7 Philco NOS 1940's (1.8/2.1ma)
12SC7 Sylvania NOS 1940's (1 in stock)
12SF5 US Brands NOS (5 in stock)
