741739 semiconductor manufactured by Sylvania, listed as 741739 (circa 1979).

741738 semiconductor manufactured by Sylvania, listed as 741738 (circa 1979).

741737 semiconductor manufactured by Sylvania, listed as 741737 (circa 1979).

741736 semiconductor manufactured by Sylvania, listed as 741736 (circa 1979).

741735 semiconductor manufactured by Sylvania, listed as 741735 (circa 1979).

741733 semiconductor manufactured by Sylvania, listed as 741733 (circa 1979).

741732 semiconductor manufactured by Sylvania, listed as 741732 (circa 1979).

741731 semiconductor manufactured by Sylvania, listed as 741731 (circa 1979).

741730 semiconductor manufactured by Sylvania, listed as 741730 (circa 1979).

741729 semiconductor manufactured by Sylvania, listed as 741729 (circa 1979).

741728 semiconductor manufactured by Sylvania, listed as 741728 (circa 1979).

741727 semiconductor manufactured by Sylvania, listed as 741727 (circa 1979).

741726 semiconductor manufactured by Sylvania, listed as 741726 (circa 1979).

741689 semiconductor manufactured by Sylvania, listed as 741689 (circa 1979).

741688 semiconductor manufactured by Sylvania, listed as 741688 (circa 1979).

741687 semiconductor manufactured by Sylvania, listed as 741687 (circa 1979).

741686 semiconductor manufactured by Sylvania, listed as 741686 (circa 1979).

741673 semiconductor manufactured by Sylvania, listed as 741673 (circa 1979).

741519 semiconductor manufactured by Sylvania, listed as 741519 (circa 1979).

741518 semiconductor manufactured by Sylvania, listed as 741518 (circa 1979).