1N4402A semiconductor manufactured by Sylvania, listed as 1N4402A (circa 1979).

1N5047 semiconductor manufactured by Sylvania, listed as 1N5047 (circa 1979).

1N4962 semiconductor manufactured by Sylvania, listed as 1N4962 (circa 1979).

1N4847 semiconductor manufactured by Sylvania, listed as 1N4847 (circa 1979).

1N4749 semiconductor manufactured by Sylvania, listed as 1N4749 (circa 1979).

1N4653 semiconductor manufactured by Sylvania, listed as 1N4653 (circa 1979).

1N4467 semiconductor manufactured by Sylvania, listed as 1N4467 (circa 1979).

1N4402 semiconductor manufactured by Sylvania, listed as 1N4402 (circa 1979).

1N5046A semiconductor manufactured by Sylvania, listed as 1N5046A (circa 1979).

1N4846B semiconductor manufactured by Sylvania, listed as 1N4846B (circa 1979).

1N4748A semiconductor manufactured by Sylvania, listed as 1N4748A (circa 1979).

1N4652 semiconductor manufactured by Sylvania, listed as 1N4652 (circa 1979).

1N4466 semiconductor manufactured by Sylvania, listed as 1N4466 (circa 1979).

1N4401B semiconductor manufactured by Sylvania, listed as 1N4401B (circa 1979).

1N5046 semiconductor manufactured by Sylvania, listed as 1N5046 (circa 1979).

1N4960D semiconductor manufactured by Sylvania, listed as 1N4960D (circa 1979).

1N4846A semiconductor manufactured by Sylvania, listed as 1N4846A (circa 1979).

1N4748 semiconductor manufactured by Sylvania, listed as 1N4748 (circa 1979).

1N4651 semiconductor manufactured by Sylvania, listed as 1N4651 (circa 1979).

1N4465 semiconductor manufactured by Sylvania, listed as 1N4465 (circa 1979).