1N4401A semiconductor manufactured by Sylvania, listed as 1N4401A (circa 1979).

1N5045A semiconductor manufactured by Sylvania, listed as 1N5045A (circa 1979).

1N4960 semiconductor manufactured by Sylvania, listed as 1N4960 (circa 1979).

1N4846 semiconductor manufactured by Sylvania, listed as 1N4846 (circa 1979).

1N4747A semiconductor manufactured by Sylvania, listed as 1N4747A (circa 1979).

1N4650 semiconductor manufactured by Sylvania, listed as 1N4650 (circa 1979).

1N4464 semiconductor manufactured by Sylvania, listed as 1N4464 (circa 1979).

1N4401 semiconductor manufactured by Sylvania, listed as 1N4401 (circa 1979).

1N5045 semiconductor manufactured by Sylvania, listed as 1N5045 (circa 1979).

1N4959 semiconductor manufactured by Sylvania, listed as 1N4959 (circa 1979).

1N4845B semiconductor manufactured by Sylvania, listed as 1N4845B (circa 1979).

1N4747 semiconductor manufactured by Sylvania, listed as 1N4747 (circa 1979).

1N4649 semiconductor manufactured by Sylvania, listed as 1N4649 (circa 1979).

1N4463 semiconductor manufactured by Sylvania, listed as 1N4463 (circa 1979).

1N4400B semiconductor manufactured by Sylvania, listed as 1N4400B (circa 1979).

1N5044A semiconductor manufactured by Sylvania, listed as 1N5044A (circa 1979).

1N4958 semiconductor manufactured by Sylvania, listed as 1N4958 (circa 1979).

1N4845A semiconductor manufactured by Sylvania, listed as 1N4845A (circa 1979).

1N4746A semiconductor manufactured by Sylvania, listed as 1N4746A (circa 1979).

1N4648 semiconductor manufactured by Sylvania, listed as 1N4648 (circa 1979).