(!!!) (BEST PAIR) 6C5GT Sylvania NOS 1948 (8.6ma and 9.0ma)
6C5G National Union used/good 1940 era (6.2ma)
6C5GT National Union NOS 1951 (7.8ma)
6C5GT Super Silvertone USA used/good 1940's (6.8ma)
6C5GT Sylvania NOS 1940's (7.8ma)
6C5GT Sylvania NOS 1948 (7.4ma)