1N5010 semiconductor manufactured by Sylvania, listed as 1N5010 (circa 1979).

1N4878 semiconductor manufactured by Sylvania, listed as 1N4878 (circa 1979).

1N4786 semiconductor manufactured by Sylvania, listed as 1N4786 (circa 1979).

1N4700 semiconductor manufactured by Sylvania, listed as 1N4700 (circa 1979).

1N4526 semiconductor manufactured by Sylvania, listed as 1N4526 (circa 1979).

1N4417A semiconductor manufactured by Sylvania, listed as 1N4417A (circa 1979).

1N5084 semiconductor manufactured by Sylvania, listed as 1N5084 (circa 1979).

1N5009A semiconductor manufactured by Sylvania, listed as 1N5009A (circa 1979).

1N4863 semiconductor manufactured by Sylvania, listed as 1N4863 (circa 1979).

1N4785 semiconductor manufactured by Sylvania, listed as 1N4785 (circa 1979).

1N4699 semiconductor manufactured by Sylvania, listed as 1N4699 (circa 1979).

1N4525 semiconductor manufactured by Sylvania, listed as 1N4525 (circa 1979).

1N4417 semiconductor manufactured by Sylvania, listed as 1N4417 (circa 1979).

1N5083 semiconductor manufactured by Sylvania, listed as 1N5083 (circa 1979).

1N5009 semiconductor manufactured by Sylvania, listed as 1N5009 (circa 1979).

1N4862 semiconductor manufactured by Sylvania, listed as 1N4862 (circa 1979).

1N4770A semiconductor manufactured by Sylvania, listed as 1N4770A (circa 1979).

1N4698 semiconductor manufactured by Sylvania, listed as 1N4698 (circa 1979).

1N4523 semiconductor manufactured by Sylvania, listed as 1N4523 (circa 1979).

1N4416B semiconductor manufactured by Sylvania, listed as 1N4416B (circa 1979).