7443A semiconductor manufactured by Sylvania, listed as 7443A (circa 1979).

74LS109 semiconductor manufactured by Sylvania, listed as 74LS109 (circa 1979).

74LS107A semiconductor manufactured by Sylvania, listed as 74LS107A (circa 1979).

74LS93A semiconductor manufactured by Sylvania, listed as 74LS93A (circa 1979).

74LS86A semiconductor manufactured by Sylvania, listed as 74LS86A (circa 1979).

74LS85A semiconductor manufactured by Sylvania, listed as 74LS85A (circa 1979).

74LS83 semiconductor manufactured by Sylvania, listed as 74LS83 (circa 1979).

74LS74 semiconductor manufactured by Sylvania, listed as 74LS74 (circa 1979).

74LS73A semiconductor manufactured by Sylvania, listed as 74LS73A (circa 1979).

74LS51A semiconductor manufactured by Sylvania, listed as 74LS51A (circa 1979).

74LS42A semiconductor manufactured by Sylvania, listed as 74LS42A (circa 1979).

74LS38A semiconductor manufactured by Sylvania, listed as 74LS38A (circa 1979).

74LS32A semiconductor manufactured by Sylvania, listed as 74LS32A (circa 1979).

74LS30A semiconductor manufactured by Sylvania, listed as 74LS30A (circa 1979).

74LS27A semiconductor manufactured by Sylvania, listed as 74LS27A (circa 1979).

74Q1262 semiconductor manufactured by Sylvania, listed as 74Q1262 (circa 1979).

74LS20A semiconductor manufactured by Sylvania, listed as 74LS20A (circa 1979).

74LS14A semiconductor manufactured by Sylvania, listed as 74LS14A (circa 1979).

74LS11A semiconductor manufactured by Sylvania, listed as 74LS11A (circa 1979).

74LS10A semiconductor manufactured by Sylvania, listed as 74LS10A (circa 1979).