1N4792 semiconductor manufactured by Sylvania, listed as 1N4792 (circa 1979).

1N4706 semiconductor manufactured by Sylvania, listed as 1N4706 (circa 1979).

1N4533 semiconductor manufactured by Sylvania, listed as 1N4533 (circa 1979).

1N4419A semiconductor manufactured by Sylvania, listed as 1N4419A (circa 1979).

1N5090 semiconductor manufactured by Sylvania, listed as 1N5090 (circa 1979).

1N5012A semiconductor manufactured by Sylvania, listed as 1N5012A (circa 1979).

1N4883 semiconductor manufactured by Sylvania, listed as 1N4883 (circa 1979).

1N4789A semiconductor manufactured by Sylvania, listed as 1N4789A (circa 1979).

1N4705 semiconductor manufactured by Sylvania, listed as 1N4705 (circa 1979).

1N4532 semiconductor manufactured by Sylvania, listed as 1N4532 (circa 1979).

1N4419 semiconductor manufactured by Sylvania, listed as 1N4419 (circa 1979).

1N5089 semiconductor manufactured by Sylvania, listed as 1N5089 (circa 1979).

1N5012 semiconductor manufactured by Sylvania, listed as 1N5012 (circa 1979).

1N4882 semiconductor manufactured by Sylvania, listed as 1N4882 (circa 1979).

1N4789 semiconductor manufactured by Sylvania, listed as 1N4789 (circa 1979).

1N4704 semiconductor manufactured by Sylvania, listed as 1N4704 (circa 1979).

1N4531 semiconductor manufactured by Sylvania, listed as 1N4531 (circa 1979).

1N4418B semiconductor manufactured by Sylvania, listed as 1N4418B (circa 1979).

1N5088 semiconductor manufactured by Sylvania, listed as 1N5088 (circa 1979).

1N5011A semiconductor manufactured by Sylvania, listed as 1N5011A (circa 1979).