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6C5 Philco metal used/good 1952 (8.2ma)
6C5 RCA metal used/tests like new 1941-1945 (8.4ma)
6C5 RCA used/good 1964 (7.8ma) Gm like new
6C5 Sylvania NOS 1940's (8.6ma)
6C8G CBS NOS 1950's (like RCA) (3.7/4.1ma)
6C8G Raytheon round black plates used/tests like new 1940's (3.6/3.4ma)
6D6 Ken Rad NOS 1940's hairline crack in base
6F6 GE metal can NOS 1952 (38ma)
6F6G RCA Cunningham used/good 1947 (31ma) (Gm like new)
6F6G RCA Victor used/strong 1945 era (30.6ma) (Gm like new)
6F6G Tungsol used/strong 1940's (34ma) (Gm like new)
6F6GT Sylvania used/good 1949 broke off guide pin (32ma)
6F8G Raytheon NOS 1945 era (5.8/5.4ma)
6J5GT RCA NOS 1970 (8.2ma)
6K8G Ken Rad NOS 1940's (2 in stock)
6K8G National Union NOS 1950 (48/25 and 58/30)
6K8G RCA NOS 1940's (1 in stock)
6L6 RCA metal can used/like new 1953 (71ma)
6L6 RCA metal can used/very good 1945 era (72.5ma)
6N7 RCA used/tests like new 1942 era (3.3/3.1ma)