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12S8GT NOS (3 in stock)
12SA7GT Auburn USA NOS 1960 (3.8ma) strong single
12SA7GT Mullard Holland used/good 1960 (3.8ma)
12SA7GT Nat. Union branded FORD MOTOR CO. used/strong 1940's (4.2ma Gm=1200)
12SA7GT Raytheon used/good (1 in stock)
12SA7GT Sylvania used/tests like new 1957 (3.3ma Gm=1100)
12SA7Y RCA brown bottom NOS 1955 (4.7ma)
12SF5 US Brands NOS (5 in stock)
12SF5GT GE NOS (8 in stock)
12SF5GT Ken Rad NOS (1.2ma Gm=1800)
12SF5GT NOS (1 in stock)
12SF7 US Brands NOS (8 in stock)
12SG7 Philco NOS 1952 (13ma)
12SG7 RCA NOS 1952 (13.4ma)
12SG7 Sylvania NOS 1950's (12.2ma)
12SG7 US Brands metal can used (10 in stock)
12SH7 US Brands NOS (12 in stock)
12SJ7 RCA metal can NOS 1950's (2.8ma)
12SJ7 RCA NOS 1961 (3.0ma)
12SJ7 Tungsol metal can NOS 1949 (3.3ma)
