1N5079 semiconductor manufactured by Sylvania, listed as 1N5079 (circa 1979).

1N5006 semiconductor manufactured by Sylvania, listed as 1N5006 (circa 1979).

1N4860 semiconductor manufactured by Sylvania, listed as 1N4860 (circa 1979).

1N4768 semiconductor manufactured by Sylvania, listed as 1N4768 (circa 1979).

1N4694 semiconductor manufactured by Sylvania, listed as 1N4694 (circa 1979).

1N4509 semiconductor manufactured by Sylvania, listed as 1N4509 (circa 1979).

1N4415 semiconductor manufactured by Sylvania, listed as 1N4415 (circa 1979).

1N5078 semiconductor manufactured by Sylvania, listed as 1N5078 (circa 1979).

1N5005 semiconductor manufactured by Sylvania, listed as 1N5005 (circa 1979).

1N4859B semiconductor manufactured by Sylvania, listed as 1N4859B (circa 1979).

1N4767A semiconductor manufactured by Sylvania, listed as 1N4767A (circa 1979).

1N4693 semiconductor manufactured by Sylvania, listed as 1N4693 (circa 1979).

1N4508 semiconductor manufactured by Sylvania, listed as 1N4508 (circa 1979).

1N4414B semiconductor manufactured by Sylvania, listed as 1N4414B (circa 1979).

1N5077 semiconductor manufactured by Sylvania, listed as 1N5077 (circa 1979).

1N5004 semiconductor manufactured by Sylvania, listed as 1N5004 (circa 1979).

1N4859A semiconductor manufactured by Sylvania, listed as 1N4859A (circa 1979).

1N4767 semiconductor manufactured by Sylvania, listed as 1N4767 (circa 1979).

1N4692 semiconductor manufactured by Sylvania, listed as 1N4692 (circa 1979).

1N4414A semiconductor manufactured by Sylvania, listed as 1N4414A (circa 1979).