(!!) 6L6GA Sylvania NOS 1940's (79.5ma)
(!!) 6L6GAY Sylvania brown base NOS 1956 aged 48-hours (84.2ma)
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)