6F6G National Union used/good mid-1940's (47ma)
6F6G RCA Cunningham used/good 1947 (31ma)
6F6G RCA NOS 1949 (35.8ma)
6F6G RCA NOS 1957 (42.2ma)
6F8G Sylvania Zenith coated glass parallel plates like new 1940's (9.0/8.4ma)
6J5GT RCA NOS 1970 (8.2ma)
6K8G Ken Rad NOS 1940's (2 in stock)
6K8G RCA NOS 1940's (1 in stock)
6K8G RCA NOS 1948 (1 in stock)
6L6 RCA metal can NOS 1940's (66ma)
6L6 RCA metal can used/like new 1953 (71ma)
6L6 RCA metal can used/very good 1945 era (72.5ma)
6L6G Ken Rad coated glass used/75% 1940's (50ma)
6L6G Sylvania branded Silvertone coated glass used/good 1947 (56ma)
6L6GA National Union used/good/80% 1940's (56.4ma)
6L6GA Sylvania SESCO used/good 1950 in white box (56.5ma)
6L6GA Sylvania used/good 1944 (79ma)
6N7=VT-96 RCA used/test like new mid-1940's (3.1/3.2ma) 1-2% section balance
6N7GT RCA branded GE NOS 1940's (2.8/2.9ma) (Highest Gm)
6N7GT RCA branded Philco NOS 1940's (2.7/2.9ma)
