74LS92 semiconductor manufactured by Sylvania, listed as 74LS92 (circa 1979).

741473 semiconductor manufactured by Sylvania, listed as 741473 (circa 1979).

741116 semiconductor manufactured by Sylvania, listed as 741116 (circa 1979).

741115 semiconductor manufactured by Sylvania, listed as 741115 (circa 1979).

741114 semiconductor manufactured by Sylvania, listed as 741114 (circa 1979).

741101 semiconductor manufactured by Sylvania, listed as 741101 (circa 1979).

741100 semiconductor manufactured by Sylvania, listed as 741100 (circa 1979).

741098 semiconductor manufactured by Sylvania, listed as 741098 (circa 1979).

741051 semiconductor manufactured by Sylvania, listed as 741051 (circa 1979).

741050 semiconductor manufactured by Sylvania, listed as 741050 (circa 1979).

741008 semiconductor manufactured by Sylvania, listed as 741008 (circa 1979).

740954 semiconductor manufactured by Sylvania, listed as 740954 (circa 1979).

740953 semiconductor manufactured by Sylvania, listed as 740953 (circa 1979).

740952 semiconductor manufactured by Sylvania, listed as 740952 (circa 1979).

740951 semiconductor manufactured by Sylvania, listed as 740951 (circa 1979).

740950 semiconductor manufactured by Sylvania, listed as 740950 (circa 1979).

740949 semiconductor manufactured by Sylvania, listed as 740949 (circa 1979).

740948 semiconductor manufactured by Sylvania, listed as 740948 (circa 1979).

740947 semiconductor manufactured by Sylvania, listed as 740947 (circa 1979).

740946 semiconductor manufactured by Sylvania, listed as 740946 (circa 1979).