6K7 GE metal can NOS 1952 tarnished metal can (10.2ma)
6K7 GE used/very good 1940's (10.2ma)
6K7 Ken Rad used/very good 1940's (10.5ma)
6K7 Ken Rad used/very good 1940's (11.6ma)
6K7 RCA branded GM Genuine Parts used/very good 1940's (9.6ma)
6K7 RCA used/good 1946 (9.2ma)
6K7 Sylvania used/good 1940's (8.4ma)
